%0 Journal Article %A S. F. Kamornikov %T On some formations closed under taking wreath products %J Trudy Instituta matematiki %D 2016 %P 30-33 %V 24 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TIMB_2016_24_1_a3/ %G ru %F TIMB_2016_24_1_a3