%0 Journal Article %A T. I. Vasil'eva %A A. I. Prokopenko %T On the construction of $\pi$-Schunk classes of finite $\pi$-soluble groups %J Problemy fiziki, matematiki i tehniki %D 2014 %P 38-41 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/PFMT_2014_2_a5/ %G ru %F PFMT_2014_2_a5