%0 Journal Article
%T Sessions of the seminar “Algebra i Logika”
%J Algebra i logika
%D 1991
%P 118
%V 30
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_1991_30_1_a9/
%G ru
%F AL_1991_30_1_a9