%0 Journal Article
%A G.R. Baird
%T On a sublattice- of the lattice of congruences on a  0-regular semigroup.
%J Semigroup forum
%D 1972
%P 228-235
%V 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1972__5_133941/
%F SF_1972__5_133941