@article{AFST_1905_2_7_1_69_0,
     author = {K.-M. Peterson},
     title = {Sur la d\'eformation des surfaces du second ordre},
     journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques},
     pages = {69--107},
     publisher = {\'Ed. Privat, Imprimeur-Libraire},
     address = {Toulouse},
     volume = {2e s{\'e}rie, 7},
     number = {1},
     year = {1905},
     language = {fr},
     url = {https://afst.centre-mersenne.org/item/AFST_1905_2_7_1_69_0/}
}