TY  - JOUR
AU  - K.E. Osondu
TI  - Universal groups on semilattices of reversible cancellative semigroups .
JO  - Semigroup forum
PY  - 1991
SP  - 331
EP  - 336
VL  - 43
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1991__43_3_135119/
ID  - SF_1991__43_3_135119
ER  -