{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,15]],"date-time":"2026-02-15T08:46:29Z","timestamp":1771145189432,"version":"3.50.1"},"reference-count":11,"publisher":"Elsevier BV","issue":"1-3","license":[{"start":{"date-parts":[[1993,5,1]],"date-time":"1993-05-01T00:00:00Z","timestamp":736214400000},"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":7382,"URL":"https:\/\/www.elsevier.com\/open-access\/userlicense\/1.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Discrete Mathematics"],"published-print":{"date-parts":[[1993,5]]},"DOI":"10.1016\/0012-365x(93)90477-b","type":"journal-article","created":{"date-parts":[[2002,7,26]],"date-time":"2002-07-26T03:43:34Z","timestamp":1027655014000},"page":"51-55","source":"Crossref","is-referenced-by-count":47,"title":["Graphs with no induced C4 and 2K2"],"prefix":"10.1016","volume":"115","author":[{"given":"Zolt\u00e1n","family":"Bl\u00e1zsik","sequence":"first","affiliation":[]},{"given":"Mih\u00e1ly","family":"Hujter","sequence":"additional","affiliation":[]},{"given":"Andr\u00e1s","family":"Pluh\u00e1r","sequence":"additional","affiliation":[]},{"given":"Zsolt","family":"Tuza","sequence":"additional","affiliation":[]}],"member":"78","reference":[{"key":"10.1016\/0012-365X(93)90477-B_BIB1","doi-asserted-by":"crossref","first-page":"145","DOI":"10.1016\/S0167-5060(08)70731-3","article-title":"Aggregation of inequalities in integer programming","volume":"1","author":"Chv\u00e1tal","year":"1977","journal-title":"Ann. Discrete Math."},{"key":"10.1016\/0012-365X(93)90477-B_BIB2","doi-asserted-by":"crossref","first-page":"279","DOI":"10.1016\/0012-365X(92)90681-5","article-title":"Covering the cliques of a graph with vertices","volume":"108","author":"Erd\u0151s","year":"1992","journal-title":"Discrete Math."},{"key":"10.1016\/0012-365X(93)90477-B_BIB3_1","unstructured":"S. F\u00f6ldes and P.L. Hammer, Split graphs, in: F. Hoffman eds. Proc. 8th South-eastern Conf. on Combinatories, Graph Theory and Computing (Louisiana State University, Baton Rouge, Louisiana);"},{"key":"10.1016\/0012-365X(93)90477-B_BIB3_2","first-page":"311","volume":"19","year":"1977","journal-title":"Congr. Numer."},{"key":"10.1016\/0012-365X(93)90477-B_BIB4","first-page":"413","article-title":"Problems from the world surrounding perfect graphs","volume":"19","author":"Gy\u00e1rf\u00e1s","year":"1987","journal-title":"Zastosow. Mat."},{"key":"10.1016\/0012-365X(93)90477-B_BIB5_1","unstructured":"A. Gy\u00e1rf\u00e1s and J. Lehel, A Helly-type problem in trees, Colloq. Math. Soc. J\u00e1nos Bolyai 4"},{"key":"10.1016\/0012-365X(93)90477-B_BIB5_2","first-page":"571","volume":"II","year":"1970"},{"key":"10.1016\/0012-365X(93)90477-B_BIB6","doi-asserted-by":"crossref","first-page":"175","DOI":"10.2307\/2306658","article-title":"On complementary graphs","volume":"63","author":"Nordhaus","year":"1956","journal-title":"Amer. Math. Monthly"},{"key":"10.1016\/0012-365X(93)90477-B_BIB7","doi-asserted-by":"crossref","unstructured":"H.-J. Pr\u00f6mel and A. Steger, Excluding induced subgraphs: quadrilaterals, Random Structures and Algorithms, to appear.","DOI":"10.1002\/rsa.3240020106"},{"key":"10.1016\/0012-365X(93)90477-B_BIB8","doi-asserted-by":"crossref","first-page":"117","DOI":"10.1016\/0012-365X(90)90354-K","article-title":"Covering all cliques of a graph","volume":"86","author":"Tuza","year":"1990","journal-title":"Discrete Math."},{"key":"10.1016\/0012-365X(93)90477-B_BIB9","doi-asserted-by":"crossref","first-page":"345","DOI":"10.1016\/0095-8956(80)90093-3","article-title":"A bound on the chromatic number of graphs without certain induced subgraphs","volume":"29","author":"Wagon","year":"1980","journal-title":"J. Combin. Theory Ser. B"}],"container-title":["Discrete Mathematics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0012365X9390477B?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0012365X9390477B?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2019,4,13]],"date-time":"2019-04-13T05:53:43Z","timestamp":1555134823000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/0012365X9390477B"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1993,5]]},"references-count":11,"journal-issue":{"issue":"1-3","published-print":{"date-parts":[[1993,5]]}},"alternative-id":["0012365X9390477B"],"URL":"https:\/\/doi.org\/10.1016\/0012-365x(93)90477-b","relation":{},"ISSN":["0012-365X"],"issn-type":[{"value":"0012-365X","type":"print"}],"subject":[],"published":{"date-parts":[[1993,5]]}}}