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referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); 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referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); 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referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); 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referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); 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referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); 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referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); 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referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); 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referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); 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referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); 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referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); 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referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); 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referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); 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referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); 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referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); 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referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report 7th-11th October 1968); referred in the conference report (D).]]  Dahl O.-J. Myhrhaug B. and Nygaard K. (1968b) October. Some uses of the External Class Concept in SIMULA 67. (Presented by P. M. Kjeldaas at the NATO sponsored conference on Software Engineering Garmisch Germany 7th-11th October 1968); referred in the conference report Software Engineering 1968 Naur P. and Randell B. eds. p. 157. NCC Doc. (D).]]"},{"key":"e_1_3_2_1_32_1","unstructured":"Dahl O.-J. Myhrhaug B. and Nygaard K. (1970) October. Common Base Language. NCC Publ. No. S-22. (Revised edition of S-2.) (P).]]  Dahl O.-J. Myhrhaug B. and Nygaard K. (1970) October. Common Base Language. NCC Publ. No. S-22. (Revised edition of S-2.) (P).]]"},{"key":"e_1_3_2_1_33_1","unstructured":"Dijkstra E. W. (1968) May. The Structure of THE Multiprogramming System. CACM11(5). (P).]] 10.1145\/363095.363143   Dijkstra E. W. (1968) May. The Structure of THE Multiprogramming System. CACM11(5). (P).]] 10.1145\/363095.363143"},{"key":"e_1_3_2_1_34_1","unstructured":"Simulation Programming Languages Amsterdam Simulation Programming Languages J. V. Garwick Do we need all these languages? In Buxton J. N. ed 143 154"},{"key":"e_1_3_2_1_35_1","unstructured":"Gorchow N. (1966) January 10. Telegram to Leif Olaussen NCC. (C).]]  Gorchow N. (1966) January 10. Telegram to Leif Olaussen NCC. (C).]]"},{"key":"e_1_3_2_1_36_1","doi-asserted-by":"crossref","unstructured":"Gordon G. (1962) September. A General Purpose Systems Simulator. IBM Systems Journal 1. (P).]]  Gordon G. (1962) September. A General Purpose Systems Simulator. IBM Systems Journal 1. (P).]]","DOI":"10.1147\/sj.11.0018"},{"key":"e_1_3_2_1_37_1","unstructured":"Hegna H. Lund O. J. and Nygaard K. (1968) June. User's experience with the SIMULA language. NCC Doc. (D).]]  Hegna H. Lund O. J. and Nygaard K. (1968) June. User's experience with the SIMULA language. NCC Doc. (D).]]"},{"key":"e_1_3_2_1_38_1","volume-title":"ALGOL Bulletin No. 21. (P).]]","author":"Hoare C. A. R.","year":"1965"},{"key":"e_1_3_2_1_39_1","volume-title":"ALGOL Bulletin No. 23. (P).]]","author":"Hoare C. A. R.","year":"1966"},{"key":"e_1_3_2_1_40_1","unstructured":"Hoare C. A. R. (1968). Record Handling. In Genuys F. ed. Programming Languages pp. 291--347. New York: Academic Press. (P).]]  Hoare C. A. R. (1968). Record Handling. In Genuys F. ed. Programming Languages pp. 291--347. New York: Academic Press. (P).]]"},{"key":"e_1_3_2_1_41_1","doi-asserted-by":"crossref","unstructured":"Hoare C. A. R. (1972). Proof of Correctness of Data Representations. Acta Informatica1:271--281. (P).]]  Hoare C. A. R. (1972). Proof of Correctness of Data Representations. Acta Informatica1:271--281. (P).]]","DOI":"10.1007\/BF00289507"},{"key":"e_1_3_2_1_42_1","doi-asserted-by":"crossref","unstructured":"Hoare C. A. R. (1974) October. Monitors: an operating system structuring concept. CACM17(10): 548--557. (P).]] 10.1145\/355620.361161   Hoare C. A. R. (1974) October. Monitors: an operating system structuring concept. CACM17(10): 548--557. (P).]] 10.1145\/355620.361161","DOI":"10.1145\/355620.361161"},{"key":"e_1_3_2_1_43_1","unstructured":"Holb\u00e6k-Hanssen E. H\u00e5ndlykken P. and Nygaard K. (1975) September. System Description and the DELTA Language. DELTA Project Rep. No. 4 NCC Publ. No. 523. Oslo: Norwegian Computing Center. (P).]]  Holb\u00e6k-Hanssen E. H\u00e5ndlykken P. and Nygaard K. (1975) September. System Description and the DELTA Language. DELTA Project Rep. No. 4 NCC Publ. No. 523. Oslo: Norwegian Computing Center. (P).]]"},{"key":"e_1_3_2_1_44_1","unstructured":"Ichbiah J. D. and Morse S. P. (1969) December. General Concepts of the SIMULA 67 Programming Language. DR. SA. 69. 132 ND. Compagnie Internationale pour l'Informatique. (P).]]  Ichbiah J. D. and Morse S. P. (1969) December. General Concepts of the SIMULA 67 Programming Language. DR. SA. 69. 132 ND. Compagnie Internationale pour l'Informatique. (P).]]"},{"key":"e_1_3_2_1_45_1","doi-asserted-by":"crossref","unstructured":"Jonassen A. and Dahl O.-J. (1975). Analysis of an Algorithm for Priority Queue Administration. BIT15(4): 409--422. (P).]]  Jonassen A. and Dahl O.-J. (1975). Analysis of an Algorithm for Priority Queue Administration. BIT15(4): 409--422. (P).]]","DOI":"10.1007\/BF01931680"},{"key":"e_1_3_2_1_46_1","doi-asserted-by":"publisher","DOI":"10.1109\/PGEC.1964.263821"},{"key":"e_1_3_2_1_47_1","doi-asserted-by":"publisher","DOI":"10.1109\/PGEC.1964.263822"},{"key":"e_1_3_2_1_48_1","unstructured":"Kristensen B. B. Madsen O. L. and Nygaard K. (1977) September. BETA Language Development. Survey Rep. 1. 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No. 559. (P).]]  Kristensen B. B. Madsen O. L. and Nygaard K. (1977) September. BETA Language Development. Survey Rep. 1. November 1976. (Revised version September 1977.) RECAU-76-77 DAIMI PB-65 NCC Publ. No. 559. (P).]]"},{"key":"e_1_3_2_1_49_1","unstructured":"Markowitz H. M. Hausner B. and Karr H. W. (1963). SIMSCRIPT A Simulation Programming Language. Englewood Cliffs New Jersey: Prentice-Hall. (P).]]  Markowitz H. M. Hausner B. and Karr H. W. (1963). SIMSCRIPT A Simulation Programming Language. Englewood Cliffs New Jersey: Prentice-Hall. (P).]]"},{"key":"e_1_3_2_1_50_1","unstructured":"McNeley J. L. (1968). Compound Declarations. In Buxton J. N. ed. Simulation Program Languages pp. 292--303. Amsterdam: : : : (P).]]  McNeley J. L. (1968). Compound Declarations. In Buxton J. N. ed. Simulation Program Languages pp. 292--303. Amsterdam: North-Holland Publ. (P).]]"},{"key":"e_1_3_2_1_51_1","unstructured":"Murphy J. S. (1968) July 10. Letter to Kristen Nygaard NCC. (C).]]  Murphy J. S. (1968) July 10. Letter to Kristen Nygaard NCC. (C).]]"},{"key":"e_1_3_2_1_52_1","unstructured":"Myhrhaug B. (1965). Sequencing Set Efficiency. Working Paper. (D).]]  Myhrhaug B. (1965). Sequencing Set Efficiency. Working Paper. (D).]]"},{"key":"e_1_3_2_1_53_1","unstructured":"Myhrhaug B. (1967a) April 25. Letter to I. A. Clark Systems Programming Univac Minnesota. (C).]]  Myhrhaug B. (1967a) April 25. Letter to I. A. Clark Systems Programming Univac Minnesota. (C).]]"},{"key":"e_1_3_2_1_54_1","unstructured":"Myhrhaug B. (1967b) October. A note on string handling facilities in SIMULA 67 Common Base. NCC Publ. No. D24. (D).]]  Myhrhaug B. (1967b) October. A note on string handling facilities in SIMULA 67 Common Base. NCC Publ. No. D24. (D).]]"},{"key":"e_1_3_2_1_55_1","unstructured":"Myhrhaug B. (1968) January. Proposal for string and input\/output definition in SIMULA 67 Common Base. Preliminary presentation. NCC Publ. No. 212. (D).]]  Myhrhaug B. (1968) January. 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