@article{JRAM_1906__131_149241,
     author = {Cyparissos St\'ephanos},
     title = {Sur les forces donnant lieu \`a des trajectoires coniques.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {136--151},
     publisher = {mathdoc},
     volume = {131},
     year = {1906},
     zbl = {37.0736.01},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1906__131_149241/}
}