%0 Journal Article
%A V. A. Lyubetskii
%T The transition from deducibility in classical set theory to
%J Algebra i logika
%D 1991
%P 652-670
%V 30
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_1991_30_6_a2/
%G ru
%F AL_1991_30_6_a2