@article{AFM_2003_28_2_a7,
     author = {Peter A. H\"ast\"o},
     title = {The {Apollonian} metric: uniformity and quasiconvexity},
     journal = {Annales Fennici Mathematici},
     pages = {385--414},
     publisher = {mathdoc},
     volume = {28},
     number = {2},
     year = {2003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AFM_2003_28_2_a7/}
}