@article{CMH_1931__3_138551,
     author = {Rud. Fueter},
     title = {Ueber automorphe {Funktionen} der {Picard'schen} {Gruppe} {I.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {42--68},
     publisher = {mathdoc},
     volume = {3},
     year = {1931},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/CMH_1931__3_138551/}
}