%0 Journal Article %A V. T. Pliev %T Completeness of derived chains corresponding to half of the %J Doklady Akademii Nauk %D 1986 %P 552-556 %V 288 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1986_288_3_a8/ %G ru %F DAN_1986_288_3_a8