%0 Journal Article %A Riku Klén %A Antti Rasila %A Jarno Talponen %T On the smoothness of quasihyperbolic balls %J Annales Fennici Mathematici %D 2017 %P 439-452 %V 42 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5186/aasfm.2017.4226/ %R 10.5186/aasfm.2017.4226 %G en %F AFM_2017_42_1_a25