@article{JMPA_1866_2_11__221_0, author = {Liouville, J.}, title = {Extrait d'une lettre adress\'ee \`a {M.} {Besge}}, journal = {Journal de Math\'ematiques Pures et Appliqu\'ees}, pages = {221--224}, publisher = {Gauthier-Villars}, volume = {2e s{\'e}rie, 11}, year = {1866}, language = {fr}, url = {http://archive.numdam.org/item/JMPA_1866_2_11__221_0/} }