%0 Journal Article %A Puqi Tang %T Quasiconformal homeomorphisms on CR 3-manifolds with symmetries. %J Mathematische Zeitschrift %D 1995 %P 49-70 %V 219 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1995__219_2_174757/ %F MZ_1995__219_2_174757