TY  - JOUR
AU  - H.J. Weinert
TI  - On left, right and two-sided cancellable elements of semigroups.
JO  - Semigroup forum
PY  - 1978
SP  - 97
EP  - 104
VL  - 16
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1978__16_134277/
ID  - SF_1978__16_134277
ER  -