%0 Journal Article
%A M. Breen
%T A maximal chain of principal ideals in the semigroup of binary relations on a finite set.
%J Semigroup forum
%D 1991
%P 63-76
%V 43
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1991__43_3_135096/
%F SF_1991__43_3_135096