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These integrals describe the possibly singular, radial deformations of certain rubberlike materials called Blatz\u2013Ko materials.<\/jats:p>","DOI":"10.1137\/060658941","type":"journal-article","created":{"date-parts":[[2007,8,29]],"date-time":"2007-08-29T18:01:50Z","timestamp":1188410510000},"page":"838-862","source":"Crossref","is-referenced-by-count":1,"title":["On a Class of Nonconvex Bolza Problems Related to Blatz\u2013Ko Elastic Materials"],"prefix":"10.1137","volume":"39","author":[{"given":"P.","family":"Celada","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S.","family":"Perrotta","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"351","published-online":{"date-parts":[[2007,8,29]]},"reference":[{"key":"R1","doi-asserted-by":"publisher","DOI":"10.1098\/rsta.1982.0095"},{"key":"R2","doi-asserted-by":"publisher","DOI":"10.1007\/s005260000041"},{"key":"R3","doi-asserted-by":"publisher","DOI":"10.1122\/1.548937"},{"key":"R4","unstructured":"P. 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