@article{JMPA_1882_3_8__297_0,
     author = {de Saint-Germain},
     title = {Extrait d'une {Lettre} adress\'ee \`a {M.} {Resal}},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {297--298},
     publisher = {Gauthier-Villars},
     volume = {3e s{\'e}rie, 8},
     year = {1882},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1882_3_8__297_0/}
}