%0 Journal Article %A S.V. Ivanov %T On subsemigroup lattices of aperiodic groups. %J Semigroup forum %D 1994 %P 131-137 %V 48 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1994__48_3_135305/ %F SF_1994__48_3_135305