%0 Journal Article
%A J.E. Ault
%T Semigroups with midunits.
%J Semigroup forum
%D 1974
%P 346-351
%V 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1974__6_133993/
%F SF_1974__6_133993