@book{MSM_1931__47__1_0,
     author = {Tzitz\'eica, G.},
     title = {Introduction \`a la g\'eom\'etrie diff\'erentielle projective des courbes},
     series = {M\'emorial des sciences math\'ematiques},
     publisher = {Gauthier-Villars},
     number = {47},
     year = {1931},
     zbl = {0001.16403},
     language = {fr},
     url = {http://www.numdam.org/item/MSM_1931__47__1_0/}
}