{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,28]],"date-time":"2025-09-28T12:49:46Z","timestamp":1759063786277},"reference-count":12,"publisher":"Elsevier BV","license":[{"start":{"date-parts":[[2002,7,1]],"date-time":"2002-07-01T00:00:00Z","timestamp":1025481600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Electronic Notes in Discrete Mathematics"],"published-print":{"date-parts":[[2002,7]]},"DOI":"10.1016\/s1571-0653(04)00095-2","type":"journal-article","created":{"date-parts":[[2004,10,15]],"date-time":"2004-10-15T15:21:27Z","timestamp":1097853687000},"page":"503-508","source":"Crossref","is-referenced-by-count":10,"special_numbering":"C","title":["All Lobsters with Perfect Matchings are Graceful"],"prefix":"10.1016","volume":"11","author":[{"given":"David","family":"Morgan","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/S1571-0653(04)00095-2_NEWBIB1","first-page":"69","article-title":"Graceful and harmonious labelling of trees","volume":"23","author":"Aldred","year":"1998","journal-title":"Bulletin of the ICA"},{"key":"10.1016\/S1571-0653(04)00095-2_NEWBIB2","series-title":"Graceful graphs, radio antennae and French windmills, Graph Theory and Combinatorics","first-page":"18","author":"Bermond","year":"1979"},{"issue":"no. 2","key":"10.1016\/S1571-0653(04)00095-2_NEWBIB3","doi-asserted-by":"crossref","first-page":"201","DOI":"10.1007\/BF02837173","article-title":"New families of graceful banana trees","volume":"106","author":"Bhat-Nayak","year":"1996","journal-title":"Proceeding of the Indian Academy of Science"},{"key":"10.1016\/S1571-0653(04)00095-2_NEWBIB4","doi-asserted-by":"crossref","first-page":"32","DOI":"10.1111\/j.1749-6632.1979.tb17766.x","article-title":"A chronology of the Ringel\u2013Kotzig conjecture and the continuing quest to call all trees graceful","volume":"326","author":"Bloom","year":"1979","journal-title":"Annals New York Academy of Sciences"},{"key":"10.1016\/S1571-0653(04)00095-2_NEWBIB5","first-page":"337","article-title":"Operations of interlaced trees and graceful trees","volume":"4","author":"Chen","year":"1997","journal-title":"Southeast Asian Bulletin of Mathematics"},{"key":"10.1016\/S1571-0653(04)00095-2_NEWBIB6","first-page":"1","article-title":"A dynamic survey of graph labeling","volume":"5","author":"Gallian","year":"2000","journal-title":"The Electronic Journal of Combinatorics"},{"key":"10.1016\/S1571-0653(04)00095-2_NEWBIB7","first-page":"8","article-title":"Graceful labellings of two classes of big lobster trees","volume":"no. 4","author":"Ling","year":"1988","journal-title":"Neimenggu Shida Xuebao Ziran Kexue Ban"},{"key":"10.1016\/S1571-0653(04)00095-2_NEWBIB8","unstructured":"D. Morgan, Gracefully labeled trees from Skolem sequences, unpublished."},{"key":"10.1016\/S1571-0653(04)00095-2_NEWBIB9","unstructured":"H.K. Ng, Gracefulness of a class of lobsters, AMS Abstratcs 7 (1986), abstract no. 825\u201305\u2013294."},{"key":"10.1016\/S1571-0653(04)00095-2_NEWBIB10","unstructured":"G. Ringel, Problem 25 in Theory of Graphs and its Applications, Proceedings of the Symposium in Smolenice 1963, 1964, p. 162."},{"key":"10.1016\/S1571-0653(04)00095-2_NEWBIB11","series-title":"On certain valuations of the vertices of the vertices of a graph, Theory of Graphs (International Symposium, Rome, July 1966)","first-page":"349","author":"Rosa","year":"1967"},{"key":"10.1016\/S1571-0653(04)00095-2_NEWBIB12","series-title":"Introduction to Graph Theory","author":"West","year":"1996"}],"container-title":["Electronic Notes in Discrete Mathematics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1571065304000952?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1571065304000952?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2019,2,3]],"date-time":"2019-02-03T02:54:30Z","timestamp":1549162470000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S1571065304000952"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2002,7]]},"references-count":12,"alternative-id":["S1571065304000952"],"URL":"https:\/\/doi.org\/10.1016\/s1571-0653(04)00095-2","relation":{},"ISSN":["1571-0653"],"issn-type":[{"value":"1571-0653","type":"print"}],"subject":[],"published":{"date-parts":[[2002,7]]}}}