TY  - JOUR
AU  - Costanza Borelli
TI  - On Hyers-Ulam stability for a class of functional equations.
JO  - Aequationes mathematicae
PY  - 1997
SP  - 74
EP  - 86
VL  - 54
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AM2_1997__54_3_137695/
ID  - AM2_1997__54_3_137695
ER  -