@article{JRAM_1953__192_150244,
     author = {Hans-Joachim Kanold},
     title = {Einige neuere {Bedinungen} f\"ur die {Existenz} ungerader vollkommener {Zahlen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {24--34},
     publisher = {mathdoc},
     volume = {192},
     year = {1953},
     zbl = {0051.27901},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1953__192_150244/}
}