{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,15]],"date-time":"2026-01-15T00:02:39Z","timestamp":1768435359707,"version":"3.49.0"},"reference-count":9,"publisher":"Elsevier BV","issue":"1-3","license":[{"start":{"date-parts":[[1997,1,1]],"date-time":"1997-01-01T00:00:00Z","timestamp":852076800000},"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":6041,"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":[[1997,1]]},"DOI":"10.1016\/s0012-365x(96)00344-5","type":"journal-article","created":{"date-parts":[[2002,7,25]],"date-time":"2002-07-25T17:36:38Z","timestamp":1027618598000},"page":"299-305","source":"Crossref","is-referenced-by-count":69,"title":["Covering and coloring polygon-circle graphs"],"prefix":"10.1016","volume":"163","author":[{"given":"Alexandr","family":"Kostochka","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jan","family":"Kratochv\u00edl","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/S0012-365X(96)00344-5_BIB1","doi-asserted-by":"crossref","first-page":"243","DOI":"10.1007\/BF02579301","article-title":"Reducing prime graphs and recognizing circle graphs","volume":"7","author":"Bouchet","year":"1987","journal-title":"Combinatorica"},{"key":"10.1016\/S0012-365X(96)00344-5_BIB2","doi-asserted-by":"crossref","first-page":"107","DOI":"10.1006\/jctb.1994.1008","article-title":"Circle graph obstructions","volume":"60","author":"Bouchet","year":"1994","journal-title":"J. Combin. Theory Ser. B"},{"key":"10.1016\/S0012-365X(96)00344-5_BIB3","series-title":"Algorithmic Graph Theory and Perfect Graphs","author":"Golumbic","year":"1980"},{"key":"10.1016\/S0012-365X(96)00344-5_BIB4","doi-asserted-by":"crossref","first-page":"161","DOI":"10.1016\/0012-365X(85)90044-5","article-title":"On the chromatic number of multiple interval graphs and overlap graphs","volume":"55","author":"Gyarf\u00e4s","year":"1985","journal-title":"Discrete Math."},{"key":"10.1016\/S0012-365X(96)00344-5_BIB5","doi-asserted-by":"crossref","first-page":"333","DOI":"10.1016\/0012-365X(86)90224-4","article-title":"Corrigendum","volume":"62","author":"Gyarf\u00e4s","year":"1986","journal-title":"Discrete Math."},{"key":"10.1016\/S0012-365X(96)00344-5_BIB6","first-page":"413","article-title":"Problems from the world surrounding perfect graphs","volume":"19","author":"Gyarf\u00e4s","year":"1987","journal-title":"Zastos. Mat."},{"key":"10.1016\/S0012-365X(96)00344-5_BIB7","doi-asserted-by":"crossref","first-page":"307","DOI":"10.1016\/0012-365X(92)90684-8","article-title":"Threshold functions for classes of intersection graphs","volume":"108","author":"Janson","year":"1992","journal-title":"Discrete Math."},{"key":"10.1016\/S0012-365X(96)00344-5_BIB8","series-title":"Graphs and Complexity, Proc. 4th Czechoslovak Symp. on Combinatorics","first-page":"141","article-title":"On a new class of intersection graphs","volume":"Vol. 51","author":"Koebe","year":"1992"},{"key":"10.1016\/S0012-365X(96)00344-5_BIB9","first-page":"204","article-title":"On upper bounds on the chromatic numbers of graphs","volume":"Vol. 10","author":"Kostochka","year":"1988"}],"container-title":["Discrete Mathematics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0012365X96003445?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0012365X96003445?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2019,4,24]],"date-time":"2019-04-24T18:26:32Z","timestamp":1556130392000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0012365X96003445"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1997,1]]},"references-count":9,"journal-issue":{"issue":"1-3","published-print":{"date-parts":[[1997,1]]}},"alternative-id":["S0012365X96003445"],"URL":"https:\/\/doi.org\/10.1016\/s0012-365x(96)00344-5","relation":{},"ISSN":["0012-365X"],"issn-type":[{"value":"0012-365X","type":"print"}],"subject":[],"published":{"date-parts":[[1997,1]]}}}