TY  - JOUR
AU  - H. Cohen
AU  - R.J- Koch
TI  - Idempotent semigroups generated by threads II.
JO  - Semigroup forum
PY  - 1982
SP  - 373
EP  - 384
VL  - 24
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1982__24_134558/
ID  - SF_1982__24_134558
ER  -