%0 Journal Article %A Majindar, K. N. %T Coexistence of some B.I.B. Designs %J Canadian mathematical bulletin %D 1978 %P 73-77 %V 21 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1978-011-9/ %R 10.4153/CMB-1978-011-9 %F 10_4153_CMB_1978_011_9