%0 Journal Article
%A A. I. Citkin
%T On admissible rules of intuitionistic propositional logic
%J Sbornik. Mathematics
%D 1977
%P 279-288
%V 31
%N 2
%U http://geodesic.mathdoc.fr/item/SM_1977_31_2_a10/
%G en
%F SM_1977_31_2_a10