TY  - JOUR
AU  - J. Crawley
TI  - Epimorphisms and semilattices of semigroups.
JO  - Semigroup forum
PY  - 1980
SP  - 95
EP  - 112
VL  - 21
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1980__21_134440/
ID  - SF_1980__21_134440
ER  -