@article{JMPA_1843_1_8__49_0,
     author = {Lebesgue},
     title = {Th\'eor\`emes nouveaux sur l'\'equation ind\'etermin\'ee $x^5+y^5=az^5$},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {49--70},
     publisher = {Gauthier-Villars},
     volume = {1e s{\'e}rie, 8},
     year = {1843},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1843_1_8__49_0/}
}