TY  - JOUR
AU  - Haruki, Hiroshi
TI  - A Functional Equation Arising from Ivory's Theorem in Geometry
JO  - Canadian mathematical bulletin
PY  - 1975
SP  - 507
EP  - 516
VL  - 18
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1975-093-8/
DO  - 10.4153/CMB-1975-093-8
ID  - 10_4153_CMB_1975_093_8
ER  -