@article{AFST_1906_2_8__153_0,
     author = {Carrus, S.},
     title = {Familles de surfaces \`a trajectoires orthogonales planes},
     journal = {Annales de la Facult\'e des sciences de l'Universit\'e de Toulouse pour les sciences math\'ematiques et les sciences physiques},
     pages = {153--239},
     publisher = {\'Ed. Privat, Imprimeur-Libraire},
     address = {Toulouse},
     volume = {2e s{\'e}rie, 8},
     year = {1906},
     language = {fr},
     url = {http://www.numdam.org/item/AFST_1906_2_8__153_0/}
}