%0 Journal Article
%A L. Márki
%A O. Steinfeld
%T A generalization of Green's relations in semigroups.
%J Semigroup forum
%D 1974
%P 74-85
%V 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1974__7_134002/
%F SF_1974__7_134002