%0 Journal Article %A L. A. Shemetkov %T The existence of $\Pi$-complements to normal subgroups of finite groups %J Doklady Akademii Nauk %D 1970 %P 50-52 %V 195 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1970_195_1_a11/ %G ru %F DAN_1970_195_1_a11