%0 Journal Article
%A N. V. Bayanova
%T Coverings in the lattice of varieties of $l$-groups
%J Algebra i logika
%D 1998
%P 253-269
%V 37
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_1998_37_3_a0/
%G ru
%F AL_1998_37_3_a0