TY  - JOUR
AU  - Thomas E. Nordahl
TI  - Separative P.I. semigroups are embeddable into a semilattice of groups.
JO  - Semigroup forum
PY  - 1989
SP  - 119
EP  - 122
VL  - 38
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1989__38_2_134946/
ID  - SF_1989__38_2_134946
ER  -