{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,1]],"date-time":"2026-03-01T14:47:13Z","timestamp":1772376433591,"version":"3.50.1"},"reference-count":7,"publisher":"Society for Industrial & Applied Mathematics (SIAM)","issue":"3","funder":[{"DOI":"10.13039\/501100001804","name":"Canada Research Chairs","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001804","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000038","name":"Natural Sciences and Engineering Research Council of Canada","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100000038","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004329","name":"Javna Agencija za Raziskovalno Dejavnost RS","doi-asserted-by":"publisher","award":["P1-0297"],"award-info":[{"award-number":["P1-0297"]}],"id":[{"id":"10.13039\/501100004329","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["SIAM J. Discrete Math."],"published-print":{"date-parts":[[2017,1]]},"DOI":"10.1137\/16m108080x","type":"journal-article","created":{"date-parts":[[2017,9,26]],"date-time":"2017-09-26T18:08:56Z","timestamp":1506449336000},"page":"2201-2205","source":"Crossref","is-referenced-by-count":16,"title":["Planar Digraphs of Digirth Four are 2-Colorable"],"prefix":"10.1137","volume":"31","author":[{"given":"Zhentao","family":"Li","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bojan","family":"Mohar","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"351","reference":[{"key":"atypb1","doi-asserted-by":"publisher","DOI":"10.1002\/jgt.20003"},{"key":"atypb3","doi-asserted-by":"crossref","first-page":"P3","DOI":"10.37236\/4596","volume":"22","author":"Golowich N.","year":"2015","journal-title":"Electron. J. Combin."},{"key":"atypb4","doi-asserted-by":"publisher","DOI":"10.1002\/jgt.22032"},{"key":"atypb5","doi-asserted-by":"publisher","DOI":"10.1016\/0095-8956(82)90046-6"},{"key":"atypb7","doi-asserted-by":"publisher","DOI":"10.1002\/jgt.3190070205"},{"key":"atypb8","doi-asserted-by":"publisher","DOI":"10.1090\/S0002-9947-1956-0081471-8"},{"key":"atypb9","doi-asserted-by":"publisher","DOI":"10.1007\/BF01837870"}],"container-title":["SIAM Journal on Discrete Mathematics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/epubs.siam.org\/doi\/pdf\/10.1137\/16M108080X","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,10,18]],"date-time":"2020-10-18T08:41:31Z","timestamp":1603010491000},"score":1,"resource":{"primary":{"URL":"https:\/\/epubs.siam.org\/doi\/10.1137\/16M108080X"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,1]]},"references-count":7,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2017,1]]}},"alternative-id":["10.1137\/16M108080X"],"URL":"https:\/\/doi.org\/10.1137\/16m108080x","relation":{},"ISSN":["0895-4801","1095-7146"],"issn-type":[{"value":"0895-4801","type":"print"},{"value":"1095-7146","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,1]]}}}