%0 Journal Article
%A N. Kehayopulu
%T On intra-regular ordered  semigroups.
%J Semigroup forum
%D 1993
%P 271-278
%V 46
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1993__46_1_135235/
%F SF_1993__46_1_135235