@article{CMH_1978__53_139763,
     author = {Christian Blatter},
     title = {Ein {Verzerrungssatz} f\"ur schlichte {Funktionen.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {651--659},
     publisher = {mathdoc},
     volume = {53},
     year = {1978},
     zbl = {0398.30004},
     url = {http://geodesic.mathdoc.fr/item/CMH_1978__53_139763/}
}