@article{ASENS_1866_1_3__97_0,
     author = {Darboux, Gaston},
     title = {Sur les surfaces orthogonales},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {97--141},
     publisher = {Elsevier},
     volume = {1e s{\'e}rie, 3},
     year = {1866},
     doi = {10.24033/asens.20},
     language = {fr},
     url = {http://www.numdam.org/articles/10.24033/asens.20/}
}