@article{JRAM_1911__140_149353,
     author = {Ph. Furtw\"angler},
     title = {\"Uber die {Klassenzahlen} der {Kreisteilungsk\"orper.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {29--32},
     publisher = {mathdoc},
     volume = {140},
     year = {1911},
     zbl = {42.0229.02},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1911__140_149353/}
}