@article{BSMA_1875__8__56_0,
     author = {Darboux, G.},
     title = {M\'emoire sur le th\'eor\`eme de {Sturm}},
     journal = {Bulletin des Sciences Math\'ematiques et Astronomiques},
     pages = {56--63},
     publisher = {Gauthier-Villars},
     volume = {8},
     year = {1875},
     language = {fr},
     url = {http://www.numdam.org/item/BSMA_1875__8__56_0/}
}