%0 Journal Article
%A S. Bulman-Fleming
%A K. McDowell
%T A non regular perfect semigroup.
%J Semigroup forum
%D 1986
%P 119-122
%V 35
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1986__35_134860/
%F SF_1986__35_134860