%0 Journal Article
%A Jonathan Leech
%T The...-CATEGORY OF A SEMIGROUP.
%J Semigroup forum
%D 1975
%P 283-296
%V 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1975__11_134144/
%G en
%F SF_1975__11_134144