%0 Journal Article
%A C.L. Adair
%T A generalization of the bicyclic semigroup.
%J Semigroup forum
%D 1980
%P 13-26
%V 21
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1980__21_134433/
%F SF_1980__21_134433