{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,8]],"date-time":"2026-04-08T04:58:17Z","timestamp":1775624297324,"version":"3.50.1"},"reference-count":5,"publisher":"Elsevier BV","issue":"2","license":[{"start":{"date-parts":[[1978,4,1]],"date-time":"1978-04-01T00:00:00Z","timestamp":260236800000},"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":12891,"URL":"https:\/\/www.elsevier.com\/open-access\/userlicense\/1.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Combinatorial Theory, Series B"],"published-print":{"date-parts":[[1978,4]]},"DOI":"10.1016\/0095-8956(78)90015-1","type":"journal-article","created":{"date-parts":[[2004,9,8]],"date-time":"2004-09-08T10:32:55Z","timestamp":1094639575000},"page":"137-153","source":"Crossref","is-referenced-by-count":24,"title":["\u03c3-polynomials and graph coloring"],"prefix":"10.1016","volume":"24","author":[{"given":"Robert R","family":"Korfhage","sequence":"first","affiliation":[]}],"member":"78","reference":[{"key":"10.1016\/0095-8956(78)90015-1_BIB1","doi-asserted-by":"crossref","first-page":"355","DOI":"10.1090\/S0002-9947-1946-0018401-4","article-title":"Chromatic polynomials","volume":"60","author":"Birkhoff","year":"1946","journal-title":"Trans. Amer. Math. Soc."},{"key":"10.1016\/0095-8956(78)90015-1_BIB2","doi-asserted-by":"crossref","first-page":"95","DOI":"10.1016\/S0021-9800(70)80058-8","article-title":"A note on coefficients of chromatic polynomials","volume":"9","author":"Chvatal","year":"1970","journal-title":"J. Combinatorial Theory"},{"key":"10.1016\/0095-8956(78)90015-1_BIB3","doi-asserted-by":"crossref","first-page":"248","DOI":"10.1016\/0095-8956(74)90071-9","article-title":"Chromatic polynomials and logarithmic concavity","volume":"16","author":"Hoggar","year":"1974","journal-title":"J. Combinatorial Theory Ser. B"},{"key":"10.1016\/0095-8956(78)90015-1_BIB4","doi-asserted-by":"crossref","first-page":"14","DOI":"10.1016\/0095-8956(72)90003-2","article-title":"Coefficients of chromatic polynomials","volume":"13","author":"Meredith","year":"1972","journal-title":"J. Combinatorial Theory Ser. B"},{"key":"10.1016\/0095-8956(78)90015-1_BIB5","doi-asserted-by":"crossref","first-page":"52","DOI":"10.1016\/S0021-9800(68)80087-0","article-title":"An introduction to chromatic polynomials","volume":"4","author":"Read","year":"1968","journal-title":"J. Combinatorial Theory"}],"container-title":["Journal of Combinatorial Theory, Series B"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0095895678900151?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0095895678900151?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2019,2,3]],"date-time":"2019-02-03T22:20:34Z","timestamp":1549232434000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/0095895678900151"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1978,4]]},"references-count":5,"journal-issue":{"issue":"2","published-print":{"date-parts":[[1978,4]]}},"alternative-id":["0095895678900151"],"URL":"https:\/\/doi.org\/10.1016\/0095-8956(78)90015-1","relation":{},"ISSN":["0095-8956"],"issn-type":[{"value":"0095-8956","type":"print"}],"subject":[],"published":{"date-parts":[[1978,4]]}}}