%0 Journal Article
%A Gelu Popescu
%T Hyperbolic geometry on noncommutative balls
%J Documenta mathematica
%D 2009
%P 595-651
%V 14
%U http://geodesic.mathdoc.fr/articles/10.4171/dm/283/
%R 10.4171/dm/283
%F 10_4171_dm_283