TY  - JOUR
AU  - János Aczél
TI  - Functions of Binomial Type Mapping Groupoids into Rings.
JO  - Mathematische Zeitschrift
PY  - 1977
SP  - 115
EP  - 124
VL  - 154
UR  - http://geodesic.mathdoc.fr/item/MZ_1977__154_172515/
ID  - MZ_1977__154_172515
ER  -