%0 Journal Article
%A A. B. Engel
%T Necessary conditions for a semigroup to be an integral CRM-ring with identity.
%J Semigroup forum
%D 1976
%P 207-214
%V 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1976__12_134173/
%F SF_1976__12_134173