%0 Journal Article %A M. M. Lesokhin %T On separability of subsemigroups by complex characters %J Sbornik. Mathematics %D 1967 %P 295-301 %V 3 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1967_3_2_a8/ %G en %F SM_1967_3_2_a8