%0 Journal Article
%A S. G. Ivanov
%T Standard and dually standard elements of the lattice of subgroups
%J Algebra i logika
%D 1969
%P 440-446
%V 8
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_1969_8_4_a2/
%G ru
%F AL_1969_8_4_a2