{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,13]],"date-time":"2026-01-13T02:08:31Z","timestamp":1768270111325,"version":"3.49.0"},"reference-count":7,"publisher":"Elsevier BV","issue":"3","license":[{"start":{"date-parts":[[1989,8,1]],"date-time":"1989-08-01T00:00:00Z","timestamp":617932800000},"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":8751,"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":[[1989,8]]},"DOI":"10.1016\/0304-3975(89)90152-7","type":"journal-article","created":{"date-parts":[[2002,7,26]],"date-time":"2002-07-26T00:17:21Z","timestamp":1027642641000},"page":"247-254","source":"Crossref","is-referenced-by-count":7,"title":["Language-theoretical representations of \u03c9-languages"],"prefix":"10.1016","volume":"66","author":[{"given":"Hideki","family":"Yamasaki","sequence":"first","affiliation":[]}],"member":"78","reference":[{"key":"10.1016\/0304-3975(89)90152-7_BIB1","series-title":"Proc. Internat. Congr. on Logic, Methodology and Philosophy of Science 1960","first-page":"1","article-title":"On a decision method in restricted second-order arithmetics","author":"B\u00fcchi","year":"1960"},{"key":"10.1016\/0304-3975(89)90152-7_BIB2","doi-asserted-by":"crossref","first-page":"376","DOI":"10.1007\/BF01691063","article-title":"Decision problems for \u03c9-automata","volume":"3","author":"Landweber","year":"1969","journal-title":"Math. Systems Theory"},{"key":"10.1016\/0304-3975(89)90152-7_BIB3","doi-asserted-by":"crossref","first-page":"137","DOI":"10.1016\/0304-3975(88)90121-1","article-title":"Accepting conditions for automata on \u03c9-words","volume":"61","author":"Moriya","year":"1988","journal-title":"Theoret. Comput. Sci."},{"key":"10.1016\/0304-3975(89)90152-7_BIB4","unstructured":"A. Saoudi, Automata sur des objects infinis, Manuscript."},{"key":"10.1016\/0304-3975(89)90152-7_BIB5","first-page":"379","article-title":"Automatentheoretische und automatenfreie Characterisierungen topologischer Klassen regularer Folgenmengen","volume":"10","author":"Staiger","year":"1974","journal-title":"Elektron. Informationsverarb. Kybernet."},{"key":"10.1016\/0304-3975(89)90152-7_BIB6","doi-asserted-by":"crossref","first-page":"217","DOI":"10.1016\/0304-3975(83)90057-9","article-title":"A note on \u03c9-regular languages","volume":"23","author":"Takahashi","year":"1983","journal-title":"Theoret. Comput. Sci."},{"key":"10.1016\/0304-3975(89)90152-7_BIB7","doi-asserted-by":"crossref","first-page":"123","DOI":"10.1016\/S0019-9958(79)90653-3","article-title":"On \u03c9-regular sets","volume":"43","author":"Wagner","year":"1979","journal-title":"Inform. and Control"}],"container-title":["Theoretical Computer Science"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0304397589901527?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0304397589901527?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2019,4,12]],"date-time":"2019-04-12T09:56:14Z","timestamp":1555062974000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/0304397589901527"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1989,8]]},"references-count":7,"journal-issue":{"issue":"3","published-print":{"date-parts":[[1989,8]]}},"alternative-id":["0304397589901527"],"URL":"https:\/\/doi.org\/10.1016\/0304-3975(89)90152-7","relation":{},"ISSN":["0304-3975"],"issn-type":[{"value":"0304-3975","type":"print"}],"subject":[],"published":{"date-parts":[[1989,8]]}}}