{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,6]],"date-time":"2026-03-06T01:37:29Z","timestamp":1772761049237,"version":"3.50.1"},"reference-count":4,"publisher":"Institute of Electrical and Electronics Engineers (IEEE)","issue":"5","license":[{"start":{"date-parts":[[2014,5,1]],"date-time":"2014-05-01T00:00:00Z","timestamp":1398902400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/ieeexplore.ieee.org\/Xplorehelp\/downloads\/license-information\/IEEE.html"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IEEE Trans. Inform. Theory"],"published-print":{"date-parts":[[2014,5]]},"DOI":"10.1109\/tit.2014.2311434","type":"journal-article","created":{"date-parts":[[2014,3,18]],"date-time":"2014-03-18T18:04:31Z","timestamp":1395165871000},"page":"2694-2696","source":"Crossref","is-referenced-by-count":9,"title":["Mutual Information Matrices Are Not Always Positive Semidefinite"],"prefix":"10.1109","volume":"60","author":[{"given":"Sune K.","family":"Jakobsen","sequence":"first","affiliation":[]}],"member":"263","reference":[{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1109\/18.641561"},{"key":"ref3","doi-asserted-by":"crossref","DOI":"10.1007\/978-1-4419-8608-5","author":"yeung","year":"2002","journal-title":"A First Course in Information Theory"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1109\/CCECE.2007.295"},{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1017\/CBO9780511804441"}],"container-title":["IEEE Transactions on Information Theory"],"original-title":[],"link":[{"URL":"http:\/\/xplorestaging.ieee.org\/ielx7\/18\/6800061\/06774945.pdf?arnumber=6774945","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,1,12]],"date-time":"2022-01-12T16:29:54Z","timestamp":1642004994000},"score":1,"resource":{"primary":{"URL":"http:\/\/ieeexplore.ieee.org\/document\/6774945\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014,5]]},"references-count":4,"journal-issue":{"issue":"5"},"URL":"https:\/\/doi.org\/10.1109\/tit.2014.2311434","relation":{},"ISSN":["0018-9448","1557-9654"],"issn-type":[{"value":"0018-9448","type":"print"},{"value":"1557-9654","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014,5]]}}}