@article{AMPA_1830-1831__21__187_1,
     author = {Vall\`es},
     title = {D\'emonstration du th\'eor\`eme de g\'eom\'etrie \'enonc\'e \`a la pag. 100 du pr\'esent volume},
     journal = {Annales de math\'ematiques pures et appliqu\'ees},
     pages = {187--188},
     publisher = {Bachelier, gendre Courcier, Libraire pour les Math\'ematiques},
     address = {Paris},
     volume = {21},
     year = {1830-1831},
     language = {fr},
     url = {http://www.numdam.org/item/AMPA_1830-1831__21__187_1/}
}