@article{01332360, title = {Apollonius' contact problem in }, journal = {Acta Mathematica Universitatis Comenianae. New Series}, volume = {68}, year = {1999}, pages = {37-47}, zbl = {0941.14022}, language = {en}, url = {http://dml.mathdoc.fr/item/01332360} }
Drechsler, K.; Sterz, U. Apollonius' contact problem in . Acta Mathematica Universitatis Comenianae. New Series, Tome 68 (1999) pp. 37-47. http://gdmltest.u-ga.fr/item/01332360/