%0 Journal Article
%A Z. Shmuely
%T Idempotents in completely PO semigroups.
%J Semigroup forum
%D 1979
%P 317-324
%V 17
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1979__17_134326/
%F SF_1979__17_134326