@article{JRAM_1900__121_149077,
     author = {H.E. Timerding},
     title = {Ueber einen {Kugenschar.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {188--197},
     year = {1900},
     volume = {121},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1900__121_149077/}
}