{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,16]],"date-time":"2025-09-16T20:30:32Z","timestamp":1758054632161,"version":"3.44.0"},"reference-count":15,"publisher":"Elsevier BV","issue":"1-3","license":[{"start":{"date-parts":[[1998,6,1]],"date-time":"1998-06-01T00:00:00Z","timestamp":896659200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[1998,6,1]],"date-time":"1998-06-01T00:00:00Z","timestamp":896659200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2013,7,17]],"date-time":"2013-07-17T00:00:00Z","timestamp":1374019200000},"content-version":"vor","delay-in-days":5525,"URL":"http:\/\/www.elsevier.com\/open-access\/userlicense\/1.0\/"}],"funder":[{"DOI":"10.13039\/501100000038","name":"Natural Sciences and Engineering Research Council of Canada","doi-asserted-by":"publisher","award":["A7829"],"award-info":[{"award-number":["A7829"]}],"id":[{"id":"10.13039\/501100000038","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Discrete Mathematics"],"published-print":{"date-parts":[[1998,6]]},"DOI":"10.1016\/s0012-365x(98)00023-5","type":"journal-article","created":{"date-parts":[[2003,5,19]],"date-time":"2003-05-19T12:52:26Z","timestamp":1053348746000},"page":"245-251","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":0,"title":["Some t-designs are minimal (t + 1)-coverings"],"prefix":"10.1016","volume":"188","author":[{"given":"Iliya","family":"Bluskov","sequence":"first","affiliation":[]}],"member":"78","reference":[{"key":"10.1016\/S0012-365X(98)00023-5_BIB1","doi-asserted-by":"crossref","first-page":"143","DOI":"10.1016\/S0019-9958(68)90251-9","article-title":"File organization schemes based on finite geometries","volume":"12","author":"Abraham","year":"1968","journal-title":"Inform. Control"},{"key":"10.1016\/S0012-365X(98)00023-5_BIB2","first-page":"203","article-title":"Designs with maximally different blocks and v = 15, 16","volume":"50","author":"Bluskov","year":"1996","journal-title":"Utilitas Mathematica"},{"key":"10.1016\/S0012-365X(98)00023-5_BIB3","unstructured":"I.D. Bluskov, On the covering numbers C2(v,k,t), t\u2a7e3, submitted for publication."},{"key":"10.1016\/S0012-365X(98)00023-5_BIB4","first-page":"185","article-title":"Designs, Graphs, Codes and their Links","author":"Cameron","year":"1991"},{"key":"10.1016\/S0012-365X(98)00023-5_BIB5","first-page":"163","article-title":"Some simple three-designs of small order","volume":"16","author":"Chee","year":"1994","journal-title":"J. Combin. Math. Combin. Comput."},{"key":"10.1016\/S0012-365X(98)00023-5_BIB6","unstructured":"Y.M. Chee, S. Ling, The union construction for 3-Designs, submitted for publication."},{"issue":"2","key":"10.1016\/S0012-365X(98)00023-5_BIB7","doi-asserted-by":"crossref","first-page":"182","DOI":"10.1137\/0404018","article-title":"Towards a large set of Steiner quadruple systems","volume":"4","author":"Etzion","year":"1991","journal-title":"SIAM J. Discrete Math."},{"issue":"4","key":"10.1016\/S0012-365X(98)00023-5_BIB8","doi-asserted-by":"crossref","first-page":"269","DOI":"10.1002\/jcd.3180030404","article-title":"New constructions for covering designs","volume":"3","author":"Gordon","year":"1995","journal-title":"J. Combin. Des."},{"key":"10.1016\/S0012-365X(98)00023-5_BIB9","doi-asserted-by":"crossref","first-page":"145","DOI":"10.4153\/CJM-1960-013-3","article-title":"On quadruple systems","volume":"12","author":"Hanani","year":"1960","journal-title":"Canadian J. Math."},{"key":"10.1016\/S0012-365X(98)00023-5_BIB10","doi-asserted-by":"crossref","first-page":"273","DOI":"10.1016\/0097-3165(74)90054-5","article-title":"Intersection among steiner systems","volume":"16","author":"Kramer","year":"1974","journal-title":"J. Combin. Theory A"},{"key":"10.1016\/S0012-365X(98)00023-5_BIB11","series-title":"The CRC Handbook of Combinatorial Designs","first-page":"47","article-title":"t-designs, t\u2a7e3","author":"Kreher","year":"1996"},{"key":"10.1016\/S0012-365X(98)00023-5_BIB12","series-title":"Contemporary Design Theory: A Collection of Surveys","first-page":"371","article-title":"Coverings and packings","author":"Mills","year":"1992"},{"key":"10.1016\/S0012-365X(98)00023-5_BIB13","doi-asserted-by":"crossref","first-page":"973","DOI":"10.1137\/0116079","article-title":"Combinatorial information retrieval systems for files","volume":"16","author":"Ray-Chaudhuri","year":"1968","journal-title":"SIAM J. Appl. Math."},{"key":"10.1016\/S0012-365X(98)00023-5_BIB14","doi-asserted-by":"crossref","first-page":"1405","DOI":"10.2140\/pjm.1964.14.1405","article-title":"On coverings","volume":"14","author":"Sch\u00f6nheim","year":"1964","journal-title":"Pacific J. Math."},{"year":"1988","series-title":"Combinatorial Configurations","author":"Tonchev","key":"10.1016\/S0012-365X(98)00023-5_BIB15"}],"container-title":["Discrete Mathematics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0012365X98000235?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0012365X98000235?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,9,15]],"date-time":"2025-09-15T06:02:57Z","timestamp":1757916177000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0012365X98000235"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1998,6]]},"references-count":15,"journal-issue":{"issue":"1-3","published-print":{"date-parts":[[1998,6]]}},"alternative-id":["S0012365X98000235"],"URL":"https:\/\/doi.org\/10.1016\/s0012-365x(98)00023-5","relation":{},"ISSN":["0012-365X"],"issn-type":[{"type":"print","value":"0012-365X"}],"subject":[],"published":{"date-parts":[[1998,6]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Some t-designs are minimal (t + 1)-coverings","name":"articletitle","label":"Article Title"},{"value":"Discrete Mathematics","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/S0012-365X(98)00023-5","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"converted-article","name":"content_type","label":"Content Type"},{"value":"Copyright \u00a9 1998 Published by Elsevier B.V.","name":"copyright","label":"Copyright"}]}}