@article{ASENS_1899_3_16__465_0,
     author = {Darboux, Gaston},
     title = {Sur la d\'eformation des surfaces du second degr\'e et sur les transformations des surfaces \`a courbure totale constante},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {465--490},
     publisher = {Elsevier},
     volume = {3e s{\'e}rie, 16},
     year = {1899},
     doi = {10.24033/asens.472},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.24033/asens.472/}
}