%0 Journal Article
%T Sessions of the seminar “Algebra i Logika”
%J Algebra i logika
%D 1987
%P 647
%V 26
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_1987_26_5_a6/
%G ru
%F AL_1987_26_5_a6