%0 Journal Article
%A E.E. DeVun
%A G. Graham
%T Semigroups with commuting threads.
%J Semigroup forum
%D 1989
%P 203-214
%V 39
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1989__39_2_134987/
%F SF_1989__39_2_134987