TY  - JOUR
AU  - M.J. Frank
TI  - On the simultaneous associativity of F(x, y) and x + y - F(x, y).
JO  - Aequationes mathematicae
PY  - 1979
SP  - 194
EP  - 226
VL  - 19
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AM2_1979__19_136825/
ID  - AM2_1979__19_136825
ER  -