{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,1,17]],"date-time":"2024-01-17T00:02:35Z","timestamp":1705449755735},"reference-count":8,"publisher":"Elsevier BV","issue":"2","license":[{"start":{"date-parts":[[1978,11,1]],"date-time":"1978-11-01T00:00:00Z","timestamp":278726400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2013,7,18]],"date-time":"2013-07-18T00:00:00Z","timestamp":1374105600000},"content-version":"vor","delay-in-days":12678,"URL":"https:\/\/www.elsevier.com\/open-access\/userlicense\/1.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Information and Control"],"published-print":{"date-parts":[[1978,11]]},"DOI":"10.1016\/s0019-9958(78)90829-x","type":"journal-article","created":{"date-parts":[[2004,12,15]],"date-time":"2004-12-15T09:12:12Z","timestamp":1103101932000},"page":"158-176","source":"Crossref","is-referenced-by-count":2,"title":["On context-free matrix forms"],"prefix":"10.1016","volume":"39","author":[{"given":"Raija","family":"Leip\u00e4l\u00e4","sequence":"first","affiliation":[]}],"member":"78","reference":[{"key":"10.1016\/S0019-9958(78)90829-X_bib1","doi-asserted-by":"crossref","first-page":"86","DOI":"10.1016\/S0022-0000(75)80051-1","article-title":"Context-free grammar forms","volume":"11","author":"Cremers","year":"1975","journal-title":"J. Comput. System Sci."},{"key":"10.1016\/S0019-9958(78)90829-X_bib2","doi-asserted-by":"crossref","first-page":"158","DOI":"10.1016\/S0022-0000(74)80053-X","article-title":"On vector languages","volume":"8","author":"Cremers","year":"1974","journal-title":"J. Comput. System Sci."},{"key":"10.1016\/S0019-9958(78)90829-X_bib3","series-title":"presented at the 6th Internat. Symposium on Mathematical Foundations of Computer Science","article-title":"A survey of grammar forms\u20141977","author":"Ginsburg","year":"1977"},{"key":"10.1016\/S0019-9958(78)90829-X_bib4","doi-asserted-by":"crossref","first-page":"35","DOI":"10.1016\/S0022-0000(77)80026-3","article-title":"Control sets of context-free grammar forms","volume":"15","author":"Greibach","year":"1977","journal-title":"J. Comput. System Sci."},{"key":"10.1016\/S0019-9958(78)90829-X_bib5","article-title":"On non-context free grammar forms","author":"Maurer","year":"1977"},{"key":"10.1016\/S0019-9958(78)90829-X_bib6","doi-asserted-by":"crossref","first-page":"75","DOI":"10.1007\/BF00276185","article-title":"E0L forms","volume":"8","author":"Maurer","year":"1977","journal-title":"Acta Informatica"},{"key":"10.1016\/S0019-9958(78)90829-X_bib7","series-title":"Formal Languages","author":"Salomaa","year":"1973"},{"key":"10.1016\/S0019-9958(78)90829-X_bib8","series-title":"Context-Free Grammars with Restricted Rewriting","author":"Stotskij","year":"1972"}],"container-title":["Information and Control"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S001999587890829X?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S001999587890829X?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2024,1,16]],"date-time":"2024-01-16T22:21:26Z","timestamp":1705443686000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S001999587890829X"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1978,11]]},"references-count":8,"journal-issue":{"issue":"2","published-print":{"date-parts":[[1978,11]]}},"alternative-id":["S001999587890829X"],"URL":"https:\/\/doi.org\/10.1016\/s0019-9958(78)90829-x","relation":{},"ISSN":["0019-9958"],"issn-type":[{"value":"0019-9958","type":"print"}],"subject":[],"published":{"date-parts":[[1978,11]]}}}