%0 Journal Article
%A L. O'Carroll
%T A class of congruences on a posemigroup.
%J Semigroup forum
%D 1971
%P 173-179
%V 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1971__3_133860/
%F SF_1971__3_133860