%0 Journal Article %A Tadeusz Pytlik %T Spherical functions and uniformly bounded representations of free groups %J Studia Mathematica %D 1991 %P 237-250 %V 100 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-100-3-237-250/ %R 10.4064/sm-100-3-237-250 %G en %F 10_4064_sm_100_3_237_250