%0 Journal Article
%T Sessions of the seminar “Algebra i Logika”
%J Algebra i logika
%D 1989
%P 608
%V 28
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_1989_28_5_a9/
%G ru
%F AL_1989_28_5_a9