%0 Journal Article
%A M.M. Lesokhin
%A A. V. Popyrin
%T Bicharacters of semigroups.
%J Semigroup forum
%D 1986
%P 253-264
%V 35
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1986__35_134874/
%F SF_1986__35_134874