{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,31]],"date-time":"2026-01-31T15:06:18Z","timestamp":1769871978666,"version":"3.49.0"},"reference-count":13,"publisher":"Elsevier BV","issue":"3","license":[{"start":{"date-parts":[[1977,1,1]],"date-time":"1977-01-01T00:00:00Z","timestamp":220924800000},"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":13346,"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":[[1977]]},"DOI":"10.1016\/0012-365x(77)90131-5","type":"journal-article","created":{"date-parts":[[2002,7,26]],"date-time":"2002-07-26T03:33:13Z","timestamp":1027654393000},"page":"273-283","source":"Crossref","is-referenced-by-count":177,"title":["Generating all graph coverings by permutation voltage assignments"],"prefix":"10.1016","volume":"18","author":[{"given":"Jonathan L.","family":"Gross","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Thomas W.","family":"Tucker","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/0012-365X(77)90131-5_BIB1","doi-asserted-by":"crossref","first-page":"283","DOI":"10.1016\/0095-8956(76)90018-6","article-title":"Components of branched coverings of a current graph","volume":"20","author":"Alpert","year":"1976","journal-title":"J. Combinatorial Theory"},{"key":"10.1016\/0012-365X(77)90131-5_BIB2","series-title":"Algebraic Geometry and Topology: A Symposium in Honor of S. Lefschetz","article-title":"Covering spaces with singularities","author":"Fox","year":"1957"},{"key":"10.1016\/0012-365X(77)90131-5_BIB3","doi-asserted-by":"crossref","first-page":"227","DOI":"10.1016\/0095-8956(77)90068-5","article-title":"Every regular graph of even degree is a Schreier coset graph","volume":"22","author":"Gross","year":"1977","journal-title":"J. Combinatorial Theory Ser B"},{"key":"10.1016\/0012-365X(77)90131-5_BIB4","doi-asserted-by":"crossref","first-page":"239","DOI":"10.1016\/0012-365X(74)90006-5","article-title":"Voltage graphs","volume":"9","author":"Gross","year":"1974","journal-title":"Discrete Math."},{"key":"10.1016\/0012-365X(77)90131-5_BIB5","doi-asserted-by":"crossref","first-page":"218","DOI":"10.1016\/0095-8956(74)90028-8","article-title":"The topological theory of current graphs","volume":"17","author":"Gross","year":"1974","journal-title":"J. Combinatorial Theory (B)"},{"key":"10.1016\/0012-365X(77)90131-5_BIB6","doi-asserted-by":"crossref","first-page":"391","DOI":"10.2140\/pjm.1974.55.391","article-title":"Quotients of complete graphs; revisiting the Heawood map-coloring problem","volume":"55","author":"Gross","year":"1974","journal-title":"Pacific J. Math."},{"key":"10.1016\/0012-365X(77)90131-5_BIB7","doi-asserted-by":"crossref","first-page":"272","DOI":"10.1090\/S0002-9904-1963-10952-0","article-title":"Orientable imbeddings of Cayley graphs","volume":"49","author":"Gustin","year":"1963","journal-title":"Bull. Amer. Math. Soc."},{"key":"10.1016\/0012-365X(77)90131-5_BIB8","series-title":"Ph.D. Thesis","article-title":"Constellations et proprietes algebriques des graphs topologiques","author":"Jacques","year":"1969"},{"key":"10.1016\/0012-365X(77)90131-5_BIB9","series-title":"Combinatorial Group Theory","author":"Magnus","year":"1966"},{"key":"10.1016\/0012-365X(77)90131-5_BIB10","series-title":"Algebraic Topology: An Introduction","author":"Massey","year":"1967"},{"key":"10.1016\/0012-365X(77)90131-5_BIB11","doi-asserted-by":"crossref","first-page":"438","DOI":"10.1073\/pnas.60.2.438","article-title":"Solution of the Heawood map-coloring problem","volume":"60","author":"Ringel","year":"1968","journal-title":"Proc. Natl. Acad. Sci."},{"key":"10.1016\/0012-365X(77)90131-5_BIB12","series-title":"Graphs, Groups, and Surfaces","author":"White","year":"1973"},{"key":"10.1016\/0012-365X(77)90131-5_BIB13","doi-asserted-by":"crossref","first-page":"203","DOI":"10.1090\/S0002-9947-1972-0317980-2","article-title":"On the genus of a group","volume":"173","author":"White","year":"1972","journal-title":"Trans. Amer. Math. Soc."}],"container-title":["Discrete Mathematics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0012365X77901315?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0012365X77901315?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2019,4,13]],"date-time":"2019-04-13T10:57:53Z","timestamp":1555153073000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/0012365X77901315"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1977]]},"references-count":13,"journal-issue":{"issue":"3","published-print":{"date-parts":[[1977]]}},"alternative-id":["0012365X77901315"],"URL":"https:\/\/doi.org\/10.1016\/0012-365x(77)90131-5","relation":{},"ISSN":["0012-365X"],"issn-type":[{"value":"0012-365X","type":"print"}],"subject":[],"published":{"date-parts":[[1977]]}}}