{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,21]],"date-time":"2026-04-21T07:06:28Z","timestamp":1776755188072,"version":"3.51.2"},"reference-count":9,"publisher":"Elsevier BV","issue":"2","license":[{"start":{"date-parts":[[1980,1,1]],"date-time":"1980-01-01T00:00:00Z","timestamp":315532800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2013,7,17]],"date-time":"2013-07-17T00:00:00Z","timestamp":1374019200000},"content-version":"vor","delay-in-days":12251,"URL":"https:\/\/www.elsevier.com\/open-access\/userlicense\/1.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Discrete Mathematics"],"published-print":{"date-parts":[[1980]]},"DOI":"10.1016\/0012-365x(80)90117-x","type":"journal-article","created":{"date-parts":[[2002,10,10]],"date-time":"2002-10-10T21:32:03Z","timestamp":1034285523000},"page":"157-172","source":"Crossref","is-referenced-by-count":32,"title":["On the existence of doubly resolvable Kirkman systems and equidistant permutation arrays"],"prefix":"10.1016","volume":"30","author":[{"given":"R.","family":"Mathon","sequence":"first","affiliation":[]},{"given":"S.A.","family":"Vanstone","sequence":"additional","affiliation":[]}],"member":"78","reference":[{"key":"10.1016\/0012-365X(80)90117-X_BIB1","first-page":"235","article-title":"Room squares and equidistant permutation arrays","volume":"2","author":"Deza","year":"1976","journal-title":"Ars Combinatoria"},{"key":"10.1016\/0012-365X(80)90117-X_BIB2","first-page":"193","article-title":"Some constructions for equidistant permutation arrays of index one","volume":"13","author":"Heinrich","year":"1978","journal-title":"Utilitas Math."},{"key":"10.1016\/0012-365X(80)90117-X_BIB3","series-title":"Graph Theory and Related Topics","first-page":"247","article-title":"A general construction for equidistant permutation arrays","author":"Heinrich","year":"1979"},{"key":"10.1016\/0012-365X(80)90117-X_BIB4","first-page":"77","article-title":"An improved upper bound for equidistant permutation arrays","volume":"13","author":"Mullin","year":"1978","journal-title":"Utilitas Math."},{"key":"10.1016\/0012-365X(80)90117-X_BIB5","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1007\/BF01834113","article-title":"The existence of Room squares","volume":"13","author":"Mullin","year":"1975","journal-title":"Aequationes Math."},{"key":"10.1016\/0012-365X(80)90117-X_BIB6","first-page":"59","article-title":"On a conjecture concerning generalized Room squares","volume":"4","author":"Schellenberg","year":"1977","journal-title":"Ars Combinatoria"},{"key":"10.1016\/0012-365X(80)90117-X_BIB7","doi-asserted-by":"crossref","first-page":"93","DOI":"10.1016\/0012-365X(77)90011-5","article-title":"A doubly divisible nearly Kirkman system","volume":"18","author":"Smith","year":"1977","journal-title":"Discrete Math."},{"key":"10.1016\/0012-365X(80)90117-X_BIB8","unstructured":"D.K. Ray-Chaudhun and R.M. Wilson, The existence of resolvable block designs, preprint."},{"key":"10.1016\/0012-365X(80)90117-X_BIB9","doi-asserted-by":"crossref","first-page":"71","DOI":"10.1016\/0097-3165(75)90067-9","article-title":"An existence theory for pairwise balanced designs III: proof of the existence conjectures","volume":"18","author":"Wilson","year":"1975","journal-title":"J. Combinatorial Theory"}],"container-title":["Discrete Mathematics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0012365X8090117X?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0012365X8090117X?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2019,4,13]],"date-time":"2019-04-13T11:24:13Z","timestamp":1555154653000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/0012365X8090117X"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1980]]},"references-count":9,"journal-issue":{"issue":"2","published-print":{"date-parts":[[1980]]}},"alternative-id":["0012365X8090117X"],"URL":"https:\/\/doi.org\/10.1016\/0012-365x(80)90117-x","relation":{},"ISSN":["0012-365X"],"issn-type":[{"value":"0012-365X","type":"print"}],"subject":[],"published":{"date-parts":[[1980]]}}}