@article{AMPA_1812-1813__3__167_1,
     author = {Fornier, G.},
     title = {Quatri\`eme d\'emonstration},
     journal = {Annales de math\'ematiques pures et appliqu\'ees},
     pages = {167--168},
     publisher = {Veuve Courcier, Imprimeur-Libraire pour les Math\'ematiques},
     address = {Paris},
     volume = {3},
     year = {1812-1813},
     language = {fr},
     url = {http://www.numdam.org/item/AMPA_1812-1813__3__167_1/}
}