%0 Journal Article
%A J.W. Stepp
%A R.O. Fulp
%T The semigroup of semigroup extensions.
%J Semigroup forum
%D 1971
%P 173-180
%V 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1971__2_133825/
%F SF_1971__2_133825