TY  - JOUR
AU  - Z. Shmuely
TI  - Idempotents in completely PO semigroups.
JO  - Semigroup forum
PY  - 1979
SP  - 317
EP  - 324
VL  - 17
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1979__17_134326/
ID  - SF_1979__17_134326
ER  -