@article{MAN_1925__93_159079,
     author = {P.J. Myrberg},
     title = {\"Uber die automorphen {Funktionen} mehrerer {Ver\"anderlicher}},
     journal = {Mathematische Annalen},
     pages = {61--97},
     year = {1925},
     volume = {93},
     zbl = {50.0271.04},
     url = {http://geodesic.mathdoc.fr/item/MAN_1925__93_159079/}
}