%0 Journal Article
%A A. D. Yashin
%T On a~new constant in intuitionistic propositional logic
%J Fundamentalʹnaâ i prikladnaâ matematika
%D 1999
%P 903-926
%V 5
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FPM_1999_5_3_a18/
%G ru
%F FPM_1999_5_3_a18