%0 Journal Article %A D. P. Skvortsov %T A superintuitionistic propositional calculus %J Algebra i logika %D 1985 %P 195-204 %V 24 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/AL_1985_24_2_a3/ %G ru %F AL_1985_24_2_a3