%0 Journal Article %A A. F. Vasil'ev %T A problem in the theory of formations of finite groups %J Matematičeskie zametki %D 1997 %P 52-58 %V 62 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1997_62_1_a4/ %G ru %F MZM_1997_62_1_a4