TY - JOUR AU - S. Rankin AU - C. Reis TI - A - finite actions and their automorphism groups. JO - Semigroup forum PY - 1982 SP - 39 EP - 54 VL - 24 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SF_1982__24_134534/ ID - SF_1982__24_134534 ER -