%0 Journal Article
%A A. N. Zubkov
%T Varieties of pro-$p$-groups of second-order matrices
%J Algebra i logika
%D 1990
%P 430-451
%V 29
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_1990_29_4_a3/
%G ru
%F AL_1990_29_4_a3