@article{MAN_1880__17_156911,
     author = {in Paris. Darboux},
     title = {Sur le th\'eor\`eme fondamental de la g\'eom\'etrie projective. {(Extrait} d'une lettre \`a {M.} {Klein)}},
     journal = {Mathematische Annalen},
     pages = {55--61},
     year = {1880},
     volume = {17},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/MAN_1880__17_156911/}
}