TY  - JOUR
AU  - H. Grassmann
TI  - On factor S-sets of monoids modulo submonoids.
JO  - Semigroup forum
PY  - 1979
SP  - 163
EP  - 172
VL  - 18
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1979__18_134349/
ID  - SF_1979__18_134349
ER  -