TY  - JOUR
AU  - Bottema, O.
TI  - The Inversive Distance Between Two Circles
JO  - Canadian journal of mathematics
PY  - 1967
SP  - 1149
EP  - 1152
VL  - 19
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1967-104-2/
DO  - 10.4153/CJM-1967-104-2
ID  - 10_4153_CJM_1967_104_2
ER  -