%0 Journal Article
%A L. L. Maksimova
%T Pretabular extensions of Lewis's logic $S4$
%J Algebra i logika
%D 1975
%P 28-55
%V 14
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_1975_14_1_a2/
%G ru
%F AL_1975_14_1_a2