@article{JMPA_1877_3_3__323_0,
     author = {Breton (de Champ)},
     title = {Extrait d'une {Lettre} \`a {M.} {Resal}},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {323--324},
     publisher = {Gauthier-Villars},
     volume = {3e s{\'e}rie, 3},
     year = {1877},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1877_3_3__323_0/}
}