TY  - JOUR
AU  - J. Aczél
TI  - Scale-invariant equal sacrifice in  taxation and conditional functional equations.
JO  - Aequationes mathematicae
PY  - 1987
SP  - 336
EP  - 349
VL  - 32
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AM2_1987__32_137197/
ID  - AM2_1987__32_137197
ER  -