{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T07:31:35Z","timestamp":1780558295285,"version":"3.54.1"},"reference-count":0,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2000,6,1]],"date-time":"2000-06-01T00:00:00Z","timestamp":959817600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/www.springer.com\/tdm"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Math. Program."],"published-print":{"date-parts":[[2000,6]]},"DOI":"10.1007\/s101070000159","type":"journal-article","created":{"date-parts":[[2017,2,1]],"date-time":"2017-02-01T02:07:53Z","timestamp":1485914873000},"page":"183-192","source":"Crossref","is-referenced-by-count":7,"title":["Co-NP-completeness of some matrix classification problems"],"prefix":"10.1007","volume":"88","author":[{"given":"Paul","family":"Tseng","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","container-title":["Mathematical Programming"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1007\/s101070000159.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/article\/10.1007\/s101070000159\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1007\/s101070000159.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"},{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1007\/s101070000159","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,5,29]],"date-time":"2019-05-29T10:00:10Z","timestamp":1559124010000},"score":1,"resource":{"primary":{"URL":"http:\/\/link.springer.com\/10.1007\/s101070000159"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2000,6]]},"references-count":0,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2000,6]]}},"alternative-id":["0000161"],"URL":"https:\/\/doi.org\/10.1007\/s101070000159","relation":{},"ISSN":["0025-5610","1436-4646"],"issn-type":[{"value":"0025-5610","type":"print"},{"value":"1436-4646","type":"electronic"}],"subject":[],"published":{"date-parts":[[2000,6]]}}}