%0 Journal Article
%A J. Justin
%A G. Pirillo
%T Comments on the permutation property for semigroups.
%J Semigroup forum
%D 1989
%P 109-112
%V 39
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1989__39_2_134980/
%F SF_1989__39_2_134980