%0 Journal Article
%A P.V. Ramana Murty
%A S. Hanumantha Rao
%T On a problem in poe-semigroups.
%J Semigroup forum
%D 1991
%P 260-262
%V 43
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1991__43_3_135114/
%F SF_1991__43_3_135114