TY  - JOUR
AU  - H.J. Weinert
TI  - S-sets and semigroups of quotients.
JO  - Semigroup forum
PY  - 1980
SP  - 1
EP  - 78
VL  - 19
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1980__19_134369/
ID  - SF_1980__19_134369
ER  -