By Griggs J.R.   Ouyang J.   in European Journal of Combinatorics

ISSN:0195-6698|18|7|751-761

Academic Press‎(1997)‎

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By Griggs J.R.   Ho C.C.   in Advances in Applied Mathematics

ISSN:0196-8858|21|2|205-227

Academic Press‎(1998)‎

Access to resources Favorite 12.147017