%0 Journal Article
%A K.H. Hofmann
%A J.M. Day
%T Clan acts and codimension.
%J Semigroup forum
%D 1972
%P 206-214
%V 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1972__4_133895/
%F SF_1972__4_133895