{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,25]],"date-time":"2026-03-25T05:08:13Z","timestamp":1774415293302,"version":"3.50.1"},"reference-count":0,"publisher":"Elsevier BV","issue":"1-2","license":[{"start":{"date-parts":[[1999,6,1]],"date-time":"1999-06-01T00:00:00Z","timestamp":928195200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2013,7,25]],"date-time":"2013-07-25T00:00:00Z","timestamp":1374710400000},"content-version":"vor","delay-in-days":5168,"URL":"https:\/\/www.elsevier.com\/open-access\/userlicense\/1.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Artificial Intelligence"],"published-print":{"date-parts":[[1999,6]]},"DOI":"10.1016\/s0004-3702(99)00007-7","type":"journal-article","created":{"date-parts":[[2002,7,26]],"date-time":"2002-07-26T04:24:09Z","timestamp":1027657449000},"page":"273-295","source":"Crossref","is-referenced-by-count":18,"title":["Computational complexity of relating time points with intervals"],"prefix":"10.1016","volume":"109","author":[{"given":"Peter","family":"Jonsson","sequence":"first","affiliation":[]},{"given":"Thomas","family":"Drakengren","sequence":"additional","affiliation":[]},{"given":"Christer","family":"B\u00e4ckstr\u00f6m","sequence":"additional","affiliation":[]}],"member":"78","container-title":["Artificial Intelligence"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0004370299000077?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0004370299000077?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2019,4,12]],"date-time":"2019-04-12T10:50:53Z","timestamp":1555066253000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0004370299000077"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1999,6]]},"references-count":0,"journal-issue":{"issue":"1-2","published-print":{"date-parts":[[1999,6]]}},"alternative-id":["S0004370299000077"],"URL":"https:\/\/doi.org\/10.1016\/s0004-3702(99)00007-7","relation":{},"ISSN":["0004-3702"],"issn-type":[{"value":"0004-3702","type":"print"}],"subject":[],"published":{"date-parts":[[1999,6]]}}}