%0 Journal Article %A Bottema, O. %T The Inversive Distance Between Two Circles %J Canadian journal of mathematics %D 1967 %P 1149-1152 %V 19 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1967-104-2/ %R 10.4153/CJM-1967-104-2 %F 10_4153_CJM_1967_104_2