%0 Journal Article %A M. V. Volkov %T The finite basis question for varieties of semigroups %J Matematičeskie zametki %D 1989 %P 12-23 %V 45 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1989_45_3_a1/ %G ru %F MZM_1989_45_3_a1