%0 Journal Article %A V. A. Vedernikov %A M. M. Sorokina %T $\omega$-Fibered Formations and Fitting Classes of Finite Groups %J Matematičeskie zametki %D 2002 %P 43-60 %V 71 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2002_71_1_a4/ %G ru %F MZM_2002_71_1_a4