%0 Journal Article %A Yu. Sh. Gurevich %T Effective recognition of realizability of formulae of the %J Algebra i logika %D 1966 %P 25-55 %V 5 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/AL_1966_5_2_a1/ %G ru %F AL_1966_5_2_a1