%0 Journal Article %A A. I. Valitskas %T Absence of a finite basis of quasi-identities for a %J Algebra i logika %D 1982 %P 13-36 %V 21 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AL_1982_21_1_a1/ %G ru %F AL_1982_21_1_a1