%0 Journal Article %A S. Zhang %T Completely regular semigroup varieties generated by Mal'cev products with groups. %J Semigroup forum %D 1994 %P 180-192 %V 48 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1994__48_3_135310/ %F SF_1994__48_3_135310