%0 Journal Article
%A M. Petrich
%T The semigroup generated  by certain operators  on the congruence lattice of a Clifford semigroup.
%J Semigroup forum
%D 1992
%P 332-341
%V 45
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1992__45_3_135196/
%F SF_1992__45_3_135196