@article{JRAM_1940__181_150063,
     author = {Cahit Arf},
     title = {Untersuchungen \"uber reinverzweigte {Erweiterungen} diskret bewerteter perfekter {K\"orper.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {1--44},
     publisher = {mathdoc},
     volume = {181},
     year = {1940},
     zbl = {0021.20201},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1940__181_150063/}
}