@article{CMH_1986__61_140040,
     author = {M. Perovic},
     title = {Growth of the coefficient auf quasiconformality and the boundary correspondence of automorphisms of a ball.},
     journal = {Commentarii mathematici Helvetici},
     pages = {60--66},
     publisher = {mathdoc},
     volume = {61},
     year = {1986},
     zbl = {0597.30026},
     url = {http://geodesic.mathdoc.fr/item/CMH_1986__61_140040/}
}