{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,11]],"date-time":"2026-03-11T16:02:45Z","timestamp":1773244965156,"version":"3.50.1"},"reference-count":0,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2000,3,1]],"date-time":"2000-03-01T00:00:00Z","timestamp":951868800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/www.springer.com\/tdm"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Graphs and Combinatorics"],"published-print":{"date-parts":[[2000,3,1]]},"DOI":"10.1007\/s003730050002","type":"journal-article","created":{"date-parts":[[2002,10,6]],"date-time":"2002-10-06T10:22:44Z","timestamp":1033899764000},"page":"17-48","source":"Crossref","is-referenced-by-count":26,"title":["Closure Concepts: A Survey"],"prefix":"10.1007","volume":"16","author":[{"given":"Hajo","family":"Broersma","sequence":"first","affiliation":[]},{"given":"Zden\u011bk","family":"Ryj\u00e1\u010dek","sequence":"additional","affiliation":[]},{"given":"Ingo","family":"Schiermeyer","sequence":"additional","affiliation":[]}],"member":"297","container-title":["Graphs and Combinatorics"],"original-title":[],"link":[{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1007\/s003730050002.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/article\/10.1007\/s003730050002\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1007\/s003730050002","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,5,28]],"date-time":"2019-05-28T10:59:43Z","timestamp":1559041183000},"score":1,"resource":{"primary":{"URL":"http:\/\/link.springer.com\/10.1007\/s003730050002"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2000,3,1]]},"references-count":0,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2000,3,1]]}},"alternative-id":["6F6GGLWUD9CF0XW0"],"URL":"https:\/\/doi.org\/10.1007\/s003730050002","relation":{},"ISSN":["0911-0119","1435-5914"],"issn-type":[{"value":"0911-0119","type":"print"},{"value":"1435-5914","type":"electronic"}],"subject":[],"published":{"date-parts":[[2000,3,1]]}}}