%0 Journal Article %A V. V. Lodeishchikova %T Levi quasivarieties of exponent~$p^s$ %J Algebra i logika %D 2011 %P 26-41 %V 50 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AL_2011_50_1_a1/ %G ru %F AL_2011_50_1_a1