TY  - JOUR
AU  - M. Petrich
TI  - The translational hull in semigroups and rings.
JO  - Semigroup forum
PY  - 1970
SP  - 283
EP  - 360
VL  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1970__1_133804/
ID  - SF_1970__1_133804
ER  -