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Some non-isomorphic (4t + 4, 8t + 6, 4t + 3, 2t + 2, 2t + 1)- BIBD's
Discrete Mathematics, 1991William L Kocay, G H J Van Rees
exaly
SOME SYMMETRIC PBIBD'S AND BIBD'S
Annals of the New York Academy of Sciences, 1979openaire +1 more source

