%0 Journal Article
%A T.E. Hall
%A D.W.H. Gillam
%A N.H. Williams
%T An addition theorem for finite semigroups.
%J Semigroup forum
%D 1975
%P 273-276
%V 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1975__10_134120/
%F SF_1975__10_134120