%0 Journal Article
%A Z. Liu
%T A characterization of regular monoids by flatness of left acts.
%J Semigroup forum
%D 1993
%P 85-89
%V 46
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1993__46_1_135214/
%F SF_1993__46_1_135214