{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T09:26:11Z","timestamp":1778577971630,"version":"3.51.4"},"reference-count":8,"publisher":"Elsevier BV","issue":"5","license":[{"start":{"date-parts":[[1996,3,1]],"date-time":"1996-03-01T00:00:00Z","timestamp":825638400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Operations Research Letters"],"published-print":{"date-parts":[[1996,3]]},"DOI":"10.1016\/0167-6377(95)00059-3","type":"journal-article","created":{"date-parts":[[2003,9,12]],"date-time":"2003-09-12T16:10:05Z","timestamp":1063383005000},"page":"233-236","source":"Crossref","is-referenced-by-count":16,"title":["On k-sum optimization"],"prefix":"10.1016","volume":"18","author":[{"given":"Abraham P.","family":"Punnen","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Y.P.","family":"Aneja","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/0167-6377(95)00059-3_BIB1","doi-asserted-by":"crossref","first-page":"114","DOI":"10.1016\/0377-2217(85)90315-7","article-title":"k-eccentricity and absolute k-centrum of a probabilistic tree","volume":"19","author":"Andreatta","year":"1985","journal-title":"Eur. J. Oper. Res."},{"key":"10.1016\/0167-6377(95)00059-3_BIB2","doi-asserted-by":"crossref","first-page":"21","DOI":"10.1002\/net.3230150103","article-title":"Properties of the k-centrum in a network","volume":"15","author":"Andreatta","year":"1985","journal-title":"Networks"},{"key":"10.1016\/0167-6377(95)00059-3_BIB3","doi-asserted-by":"crossref","first-page":"299","DOI":"10.1016\/S0021-9800(70)80083-7","article-title":"Bottleneck extrema","volume":"8","author":"Edmonds","year":"1970","journal-title":"J. Combin. Theory"},{"key":"10.1016\/0167-6377(95)00059-3_BIB4","first-page":"155","article-title":"Algebraic \u03a3k-assignment problem","volume":"10","author":"Grygiel","year":"1981","journal-title":"Control Cybernet."},{"key":"10.1016\/0167-6377(95)00059-3_BIB5","doi-asserted-by":"crossref","first-page":"121","DOI":"10.1016\/0167-6377(90)90051-6","article-title":"K-sum optimization problems","volume":"9","author":"Gupta","year":"1990","journal-title":"Oper. Res. Lett."},{"key":"10.1016\/0167-6377(95)00059-3_BIB6","doi-asserted-by":"crossref","first-page":"209","DOI":"10.1002\/jgt.3190020304","article-title":"Centers to centroids in a graph","volume":"2","author":"Slater","year":"1978","journal-title":"J. Graph Theory"},{"key":"10.1016\/0167-6377(95)00059-3_BIB7","doi-asserted-by":"crossref","first-page":"233","DOI":"10.1002\/net.3230110302","article-title":"The k-nucleus of a graph","volume":"11","author":"Slater","year":"1981","journal-title":"Networks"},{"key":"10.1016\/0167-6377(95)00059-3_BIB8","doi-asserted-by":"crossref","first-page":"253","DOI":"10.1016\/0020-0190(91)90067-R","article-title":"On minimizing the sum of k tardinesses","volume":"38","author":"Woeginger","year":"1991","journal-title":"Inform. Process. Lett."}],"container-title":["Operations Research Letters"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0167637795000593?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0167637795000593?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2019,2,24]],"date-time":"2019-02-24T10:56:37Z","timestamp":1551005797000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/0167637795000593"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1996,3]]},"references-count":8,"journal-issue":{"issue":"5","published-print":{"date-parts":[[1996,3]]}},"alternative-id":["0167637795000593"],"URL":"https:\/\/doi.org\/10.1016\/0167-6377(95)00059-3","relation":{},"ISSN":["0167-6377"],"issn-type":[{"value":"0167-6377","type":"print"}],"subject":[],"published":{"date-parts":[[1996,3]]}}}