Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MO_1999_a2, author = {A. Ruinskii}, title = {Notes on {Apollonian} {Circles}}, journal = {Matemati\v{c}eskoe obrazovanie}, pages = {87--94}, publisher = {mathdoc}, year = {1999}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MO_1999_a2/} }
A. Ruinskii. Notes on Apollonian Circles. Matematičeskoe obrazovanie (1999), pp. 87-94. http://geodesic.mathdoc.fr/item/MO_1999_a2/