TY  - JOUR
AU  - Jens Schwaiger
AU  - Wolfgang Förg-Rob
TI  - On the stabiltiy of a system of functional equations characterizing generalize hyperbolic and trigonometric functions.
JO  - Aequationes mathematicae
PY  - 1993
SP  - 285
EP  - 296
VL  - 45
IS  - 2-3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AM2_1993__45_2-3_137529/
ID  - AM2_1993__45_2-3_137529
ER  -