TY  - JOUR
AU  - C. Maxson
AU  - M. Zeller
TI  - Elementary ...-languages and finite semilattices of groups.
JO  - Semigroup forum
PY  - 1976
SP  - 385
EP  - 386
VL  - 13
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1976__13_134229/
ID  - SF_1976__13_134229
ER  -