{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T03:25:10Z","timestamp":1783481110795,"version":"3.55.0"},"reference-count":9,"publisher":"Elsevier BV","issue":"1-3","license":[{"start":{"date-parts":[[1994,12,1]],"date-time":"1994-12-01T00:00:00Z","timestamp":786240000000},"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":6803,"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":[[1994,12]]},"DOI":"10.1016\/0012-365x(93)e0101-9","type":"journal-article","created":{"date-parts":[[2002,7,25]],"date-time":"2002-07-25T23:43:34Z","timestamp":1027640614000},"page":"225-232","source":"Crossref","is-referenced-by-count":39,"title":["Diagonal flips in triangulations of surfaces"],"prefix":"10.1016","volume":"135","author":[{"given":"Seiya","family":"Negami","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"key":"10.1016\/0012-365X(93)E0101-9_BIB1","doi-asserted-by":"crossref","first-page":"222","DOI":"10.1016\/0095-8956(82)90041-7","article-title":"Generating the triangulations of the projective plane","volume":"33","author":"Barnette","year":"1982","journal-title":"J. Combin. Theory Ser. B"},{"key":"10.1016\/0012-365X(93)E0101-9_BIB2","doi-asserted-by":"crossref","first-page":"139","DOI":"10.1016\/0012-365X(73)90076-9","article-title":"Wagner's theorem for torus graphs","volume":"4","author":"Dewdney","year":"1973","journal-title":"Discrete Math."},{"key":"10.1016\/0012-365X(93)E0101-9_BIB3","first-page":"52","article-title":"The irreducible triangulations of the torus","volume":"30","author":"Lawrenchenko","year":"1987","journal-title":"Ukrain. Geom. Sb."},{"key":"10.1016\/0012-365X(93)E0101-9_BIB4","doi-asserted-by":"crossref","first-page":"155","DOI":"10.21099\/tkbjm\/1496161326","article-title":"Diagonal transformations of triangulations on surfaces","volume":"14","author":"Negami","year":"1990","journal-title":"Tsukuba J. Math."},{"key":"10.1016\/0012-365X(93)E0101-9_BIB5","author":"Ore","year":"1967"},{"key":"10.1016\/0012-365X(93)E0101-9_BIB6","doi-asserted-by":"crossref","first-page":"317","DOI":"10.1007\/BF01343898","article-title":"Wie man die geschlossenen nichtorientierbaren Fl\u00e4chen in m\u00f6glichst wenig Dreiecke zerlegen kann","volume":"130","author":"Ringel","year":"1955","journal-title":"Math. Annalen"},{"key":"10.1016\/0012-365X(93)E0101-9_BIB7","doi-asserted-by":"crossref","first-page":"121","DOI":"10.1007\/BF02414187","article-title":"Minimal triangulations on orientable surfaces","volume":"145","author":"Ringel","year":"1980","journal-title":"Acta Math."},{"key":"10.1016\/0012-365X(93)E0101-9_BIB8","unstructured":"N. Robertson and P. Seymour, Graph Minors XVI. Wagner's conjecture, preprint."},{"key":"10.1016\/0012-365X(93)E0101-9_BIB9","first-page":"26","article-title":"Bemerkungen zum Vierfarbenproblem","author":"Wagner","year":"1936","journal-title":"J. der Deut. Math. Ver. 46"}],"container-title":["Discrete Mathematics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0012365X93E01019?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0012365X93E01019?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2019,4,13]],"date-time":"2019-04-13T02:22:52Z","timestamp":1555122172000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/0012365X93E01019"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1994,12]]},"references-count":9,"journal-issue":{"issue":"1-3","published-print":{"date-parts":[[1994,12]]}},"alternative-id":["0012365X93E01019"],"URL":"https:\/\/doi.org\/10.1016\/0012-365x(93)e0101-9","relation":{},"ISSN":["0012-365X"],"issn-type":[{"value":"0012-365X","type":"print"}],"subject":[],"published":{"date-parts":[[1994,12]]}}}