{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,8]],"date-time":"2026-01-08T20:57:04Z","timestamp":1767905824090,"version":"3.49.0"},"reference-count":9,"publisher":"Elsevier BV","issue":"2","license":[{"start":{"date-parts":[[1994,9,1]],"date-time":"1994-09-01T00:00:00Z","timestamp":778377600000},"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":6894,"URL":"https:\/\/www.elsevier.com\/open-access\/userlicense\/1.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Theoretical Computer Science"],"published-print":{"date-parts":[[1994,9]]},"DOI":"10.1016\/0304-3975(94)90177-5","type":"journal-article","created":{"date-parts":[[2002,7,26]],"date-time":"2002-07-26T04:17:21Z","timestamp":1027657041000},"page":"311-330","source":"Crossref","is-referenced-by-count":6,"title":["Language equations over a one-letter alphabet with union, concatenation and star: a complete solution"],"prefix":"10.1016","volume":"131","author":[{"given":"Ernst L.","family":"Leiss","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/0304-3975(94)90177-5_BIB1","series-title":"Rational Series and their Languages","author":"Berstel","year":"1984"},{"key":"10.1016\/0304-3975(94)90177-5_BIB2","doi-asserted-by":"crossref","first-page":"19","DOI":"10.1016\/0304-3975(80)90069-9","article-title":"On equations for regular languages, finite automata, and sequential networks","volume":"10","author":"Brzozowski","year":"1980","journal-title":"Theoret. Comput. Sci."},{"issue":"3","key":"10.1016\/0304-3975(94)90177-5_BIB3","doi-asserted-by":"crossref","first-page":"350","DOI":"10.1145\/321127.321132","article-title":"Two families of languages related to ALGOL","volume":"9","author":"Ginzburg","year":"1962","journal-title":"J. ACM"},{"key":"10.1016\/0304-3975(94)90177-5_BIB4","series-title":"Introduction of Automata Theory, Languages, and Computation","author":"Hopcroft","year":"1979"},{"key":"10.1016\/0304-3975(94)90177-5_BIB5","series-title":"Semirings, Automata, Languages","author":"Kuich","year":"1986"},{"key":"10.1016\/0304-3975(94)90177-5_BIB6","doi-asserted-by":"crossref","first-page":"63","DOI":"10.1016\/0304-3975(81)90005-0","article-title":"On generalized language equations","volume":"14","author":"Leiss","year":"1981","journal-title":"Theoret. Comput. Sci."},{"key":"10.1016\/0304-3975(94)90177-5_BIB7","doi-asserted-by":"crossref","first-page":"327","DOI":"10.1016\/0304-3975(85)90147-1","article-title":"On solving star equations","volume":"39","author":"Leiss","year":"1985","journal-title":"Theoret. Comput. Sci."},{"key":"10.1016\/0304-3975(94)90177-5_BIB8","doi-asserted-by":"crossref","DOI":"10.1016\/0304-3975(86)90115-5","article-title":"Generalized language equations with multiple solutions","volume":"44","author":"Leiss","year":"1986","journal-title":"Theoret. Comput. Sci."},{"key":"10.1016\/0304-3975(94)90177-5_BIB9","series-title":"Theory of Automata","author":"Salomaa","year":"1969"}],"container-title":["Theoretical Computer Science"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0304397594901775?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0304397594901775?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2019,4,12]],"date-time":"2019-04-12T13:59:01Z","timestamp":1555077541000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/0304397594901775"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1994,9]]},"references-count":9,"journal-issue":{"issue":"2","published-print":{"date-parts":[[1994,9]]}},"alternative-id":["0304397594901775"],"URL":"https:\/\/doi.org\/10.1016\/0304-3975(94)90177-5","relation":{},"ISSN":["0304-3975"],"issn-type":[{"value":"0304-3975","type":"print"}],"subject":[],"published":{"date-parts":[[1994,9]]}}}