TY  - JOUR
AU  - M.S. Putcha
TI  - Commutative semigroups whose homomorphic images in groups are groups.
JO  - Semigroup forum
PY  - 1971
SP  - 51
EP  - 57
VL  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1971__3_133843/
ID  - SF_1971__3_133843
ER  -