TY  - JOUR
AU  - L. O'Carroll
TI  - A class of congruences on a posemigroup.
JO  - Semigroup forum
PY  - 1971
SP  - 173
EP  - 179
VL  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1971__3_133860/
ID  - SF_1971__3_133860
ER  -