TY  - JOUR
AU  - V. Gould
TI  - The characterisation of monoids by properties of their  S-systems.
JO  - Semigroup forum
PY  - 1985
SP  - 251
EP  - 266
VL  - 32
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1985__32_134785/
ID  - SF_1985__32_134785
ER  -