%0 Journal Article %A V. A. Vedernikov %T Subdirect products and formations of finite groups %J Algebra i logika %D 1990 %P 523-548 %V 29 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/AL_1990_29_5_a1/ %G ru %F AL_1990_29_5_a1