@article{MZ_1922__14_183571,
     author = {A. Cohn},
     title = {\"Uber die {Anzahl} der {Wurzeln} einer algebraischen {Gleichung} in einem {Kreise}},
     journal = {Mathematische Zeitschrift},
     pages = {110--148},
     publisher = {mathdoc},
     volume = {14},
     year = {1922},
     zbl = {48.0083.01},
     url = {http://geodesic.mathdoc.fr/item/MZ_1922__14_183571/}
}