@article{JRAM_1906__131_149235,
     author = {Gustav Rados},
     title = {Die {Diskriminante} der allgemeinen {Kreisteilungsgleichung.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {49--55},
     publisher = {mathdoc},
     volume = {131},
     year = {1906},
     zbl = {37.0106.02},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1906__131_149235/}
}