%0 Journal Article %A A. Tauts %T Nonregular first order predicate calculus %J Algebra i logika %D 1969 %P 76-92 %V 8 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AL_1969_8_1_a4/ %G ru %F AL_1969_8_1_a4