@article{JRAM_1850__39_183309,
     author = {A. Cayley},
     title = {Note sur quelques formules relatives aux coniques.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {1--3},
     publisher = {mathdoc},
     volume = {39},
     year = {1850},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1850__39_183309/}
}