@article{MAN_1949__121_160179,
     author = {Hans T\"opfer},
     title = {Komplexe {Iterationsindizes} ganzer und rationaler {Funktionen}},
     journal = {Mathematische Annalen},
     pages = {191--222},
     publisher = {mathdoc},
     volume = {121},
     year = {1949},
     zbl = {0041.40501},
     url = {http://geodesic.mathdoc.fr/item/MAN_1949__121_160179/}
}