%0 Journal Article
%A P.G. Trotter
%T Cancellative simple semigroups and groups.
%J Semigroup forum
%D 1977
%P 189-198
%V 14
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1977__14_186367/
%F SF_1977__14_186367