TY  - JOUR
AU  - Hiroshi Haruki
TI  - A proof of Euler's identity by a functional equation.
JO  - Aequationes mathematicae
PY  - 1985
SP  - 138
EP  - 143
VL  - 28
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AM2_1985__28_137051/
ID  - AM2_1985__28_137051
ER  -