TY  - JOUR
AU  - P. Yiu 
TI  - Generalized Apollonian Circles
JO  - Journal for geometry and graphics
PY  - 2004
SP  - 225
EP  - 23
VL  - 8
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JGG_2004_8_2_JGG_2004_8_2_a9/
ID  - JGG_2004_8_2_JGG_2004_8_2_a9
ER  -