%0 Journal Article %A I. T. Mukhamet'yanov %T Block designs associated with normal subsets of finite groups %J Trudy Instituta matematiki i mehaniki %D 1996 %P 71-82 %V 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/TIMM_1996_4_a4/ %G ru %F TIMM_1996_4_a4