@article{JMPA_1847_1_12__497_0,
     author = {Lebesgue, V.-A.},
     title = {Sur le symbole $\left(\frac{a}{b}\right)$ et quelques-unes de ses applications},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {497--517},
     publisher = {Gauthier-Villars},
     volume = {1e s{\'e}rie, 12},
     year = {1847},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1847_1_12__497_0/}
}