%0 Journal Article %A M. G. Peretyat'kin %T Virtual algebraic isomorphisms between predicate calculi of finite rich signatures %J Algebra i logika %D 2021 %P 587-611 %V 60 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/AL_2021_60_6_a5/ %G ru %F AL_2021_60_6_a5