@article{JRAM_1857__53_147683,
     author = {A. Cayley},
     title = {Note sur l'\'equation {x2-Dy2=...4,} {D} ... 5 (mod. 8).},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {369--371},
     publisher = {mathdoc},
     volume = {53},
     year = {1857},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1857__53_147683/}
}