@article{CMH_1960__34_139186,
     author = {Adolf Theophil Schnyder},
     title = {\"Uber ein vollst\"andiges {System} konformer {Invarianten} von dreifach-zusammenh\"angenden {Gebieten}},
     journal = {Commentarii mathematici Helvetici},
     pages = {85--98},
     publisher = {mathdoc},
     volume = {34},
     year = {1960},
     zbl = {0100.07404},
     url = {http://geodesic.mathdoc.fr/item/CMH_1960__34_139186/}
}