@article{IM_1989__97_2_143694,
     author = {Curt McMullen},
     title = {Amenability, {Poincar\'e} series and quasiconformal maps.},
     journal = {Inventiones mathematicae},
     pages = {95--128},
     publisher = {mathdoc},
     volume = {97},
     number = {2},
     year = {1989},
     zbl = {0672.30017},
     url = {http://geodesic.mathdoc.fr/item/IM_1989__97_2_143694/}
}