@article{CMH_1932__4_138581,
     author = {A. Speiser},
     title = {Ueber beschr\"ankte automorphe {Funktionen.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {172--182},
     year = {1932},
     volume = {4},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/CMH_1932__4_138581/}
}