TY  - JOUR
AU  - W. Barit
TI  - Automorphism invariants for semigroups.
JO  - Semigroup forum
PY  - 1986
SP  - 219
EP  - 238
VL  - 33
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1986__33_134805/
ID  - SF_1986__33_134805
ER  -