{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T07:38:33Z","timestamp":1777448313556,"version":"3.51.4"},"reference-count":6,"publisher":"Elsevier BV","issue":"2","license":[{"start":{"date-parts":[[1973,3,1]],"date-time":"1973-03-01T00:00:00Z","timestamp":99792000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2013,7,17]],"date-time":"2013-07-17T00:00:00Z","timestamp":1374019200000},"content-version":"vor","delay-in-days":14748,"URL":"https:\/\/www.elsevier.com\/open-access\/userlicense\/1.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Combinatorial Theory, Series A"],"published-print":{"date-parts":[[1973,3]]},"DOI":"10.1016\/0097-3165(73)90023-x","type":"journal-article","created":{"date-parts":[[2005,2,10]],"date-time":"2005-02-10T04:49:18Z","timestamp":1108010958000},"page":"215-220","source":"Crossref","is-referenced-by-count":37,"title":["Extending symmetric designs"],"prefix":"10.1016","volume":"14","author":[{"given":"P.J","family":"Cameron","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/0097-3165(73)90023-X_BIB1","series-title":"Finite Geometries","author":"Dembowski","year":"1968"},{"key":"10.1016\/0097-3165(73)90023-X_BIB2","series-title":"Combinatorial Theory","author":"Hall","year":"1967"},{"key":"10.1016\/0097-3165(73)90023-X_BIB3","doi-asserted-by":"crossref","first-page":"12","DOI":"10.1016\/S0021-9800(70)80004-7","article-title":"Designs derived from permutation groups","volume":"8","author":"Hall","year":"1970","journal-title":"J. Combinatorial Theory"},{"key":"10.1016\/0097-3165(73)90023-X_BIB4","doi-asserted-by":"crossref","first-page":"110","DOI":"10.1007\/BF01110435","article-title":"A simple group of order 44,352,000","volume":"105","author":"Higman","year":"1968","journal-title":"Math. Z."},{"key":"10.1016\/0097-3165(73)90023-X_BIB5","doi-asserted-by":"crossref","first-page":"761","DOI":"10.2307\/2373244","article-title":"On t-designs and groups","volume":"87","author":"Hughes","year":"1965","journal-title":"Amer. J. Math."},{"key":"10.1016\/0097-3165(73)90023-X_BIB6","series-title":"Transitive Erweiterungen endlicher Permutationsgruppen","author":"Luneberg","year":"1969"}],"container-title":["Journal of Combinatorial Theory, Series A"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:009731657390023X?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:009731657390023X?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2019,1,29]],"date-time":"2019-01-29T09:23:46Z","timestamp":1548753826000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/009731657390023X"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1973,3]]},"references-count":6,"journal-issue":{"issue":"2","published-print":{"date-parts":[[1973,3]]}},"alternative-id":["009731657390023X"],"URL":"https:\/\/doi.org\/10.1016\/0097-3165(73)90023-x","relation":{},"ISSN":["0097-3165"],"issn-type":[{"value":"0097-3165","type":"print"}],"subject":[],"published":{"date-parts":[[1973,3]]}}}