TY  - JOUR
AU  - O. Steinfeld
TI  - Quasi-ideals in rings and semigroups
JO  - Semigroup forum
PY  - 1980
SP  - 371
EP  - 372
VL  - 19
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1980__19_134396/
ID  - SF_1980__19_134396
ER  -