{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,17]],"date-time":"2026-04-17T19:14:23Z","timestamp":1776453263327,"version":"3.51.2"},"reference-count":9,"publisher":"Elsevier BV","issue":"2","license":[{"start":{"date-parts":[[1978,3,1]],"date-time":"1978-03-01T00:00:00Z","timestamp":257558400000},"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":12922,"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":[[1978,3]]},"DOI":"10.1016\/0097-3165(78)90002-x","type":"journal-article","created":{"date-parts":[[2005,2,9]],"date-time":"2005-02-09T23:49:18Z","timestamp":1107992958000},"page":"141-145","source":"Crossref","is-referenced-by-count":15,"title":["The four biplanes with k = 9"],"prefix":"10.1016","volume":"24","author":[{"given":"Chester J","family":"Salwach","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joseph A","family":"Mezzaroba","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/0097-3165(78)90002-X_BIB1","doi-asserted-by":"crossref","first-page":"272","DOI":"10.1016\/0097-3165(71)90054-9","article-title":"On collineation groups of symmetric block designs","volume":"11","author":"Aschbacher","year":"1971","journal-title":"J. Combinatorial Theory"},{"key":"10.1016\/0097-3165(78)90002-X_BIB2","series-title":"Proceedings of the 1976 Berlin Combinatorics Conference","article-title":"Planes and biplanes","author":"Assmus","year":"1977"},{"key":"10.1016\/0097-3165(78)90002-X_BIB3","doi-asserted-by":"crossref","first-page":"353","DOI":"10.1111\/j.1469-1809.1939.tb02219.x","article-title":"On the Construction of Balanced Incomplete Block Designs","volume":"9","author":"Bose","year":"1939","journal-title":"Ann. Eugenics"},{"key":"10.1016\/0097-3165(78)90002-X_BIB4","doi-asserted-by":"crossref","first-page":"85","DOI":"10.1007\/BF01213827","article-title":"Biplanes","volume":"131","author":"Cameron","year":"1973","journal-title":"Math. Z."},{"key":"10.1016\/0097-3165(78)90002-X_BIB5","doi-asserted-by":"crossref","first-page":"52","DOI":"10.1111\/j.1469-1809.1940.tb02237.x","article-title":"An examination of the different possible solutions of a problem in incomplete blocks","volume":"10","author":"Fisher","year":"1940","journal-title":"Ann. Eugenics"},{"key":"10.1016\/0097-3165(78)90002-X_BIB6","doi-asserted-by":"crossref","first-page":"154","DOI":"10.32917\/hmj\/1206137446","article-title":"On the p-rank of the incidence matrix of a balanced or partially balanced incomplete block design and its applications to error correcting codes","volume":"3","author":"Hamada","year":"1973","journal-title":"Hiroshima Math. J."},{"key":"10.1016\/0097-3165(78)90002-X_BIB7","first-page":"115","article-title":"Symmetrical Incomplete Block Designs with \u03bb = 2, k = 8 or 9","volume":"37","author":"Hussain","year":"1945","journal-title":"Bull. Calcutta Math. Soc."},{"key":"10.1016\/0097-3165(78)90002-X_BIB8","first-page":"204","article-title":"On the totality of the solutions for the symmetrical incomplete block designs \u03bb = 2, k = 5 or 6","volume":"7","author":"Hussain","year":"1945","journal-title":"Sankhya"},{"key":"10.1016\/0097-3165(78)90002-X_BIB9","article-title":"Biplanes and Projective Planes","author":"Salwach","year":"1976"}],"container-title":["Journal of Combinatorial Theory, Series A"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:009731657890002X?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:009731657890002X?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2019,1,29]],"date-time":"2019-01-29T04:01:32Z","timestamp":1548734492000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/009731657890002X"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1978,3]]},"references-count":9,"journal-issue":{"issue":"2","published-print":{"date-parts":[[1978,3]]}},"alternative-id":["009731657890002X"],"URL":"https:\/\/doi.org\/10.1016\/0097-3165(78)90002-x","relation":{},"ISSN":["0097-3165"],"issn-type":[{"value":"0097-3165","type":"print"}],"subject":[],"published":{"date-parts":[[1978,3]]}}}