%0 Journal Article
%A H. Cohen
%A R.J- Koch
%T Idempotent semigroups generated by threads II.
%J Semigroup forum
%D 1982
%P 373-384
%V 24
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1982__24_134558/
%F SF_1982__24_134558