@article{JMPA_1848_1_13__72_0,
     author = {Liouville, J.},
     title = {Sur l'\'equation aux diff\'erences partielles qui concerne l'\'equilibre de la chaleur dans un corps h\'et\'erog\`ene},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {72--72},
     publisher = {Gauthier-Villars},
     volume = {1e s{\'e}rie, 13},
     year = {1848},
     language = {fr},
     url = {http://archive.numdam.org/item/JMPA_1848_1_13__72_0/}
}