%0 Journal Article
%A M.S. Putcha
%T Commutative semigroups whose homomorphic images in groups are groups.
%J Semigroup forum
%D 1971
%P 51-57
%V 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1971__3_133843/
%F SF_1971__3_133843