@article{BSMA_1883_2_7_1_42_1,
     author = {Barbier, \'Emile},
     title = {D\'emonstration \'el\'ementaire du th\'eor\`eme relatif \`a la somme des cubes des nombres secondaires},
     journal = {Bulletin des Sciences Math\'ematiques et Astronomiques},
     pages = {42--43},
     publisher = {Gauthier-Villars},
     volume = {2e s{\'e}rie, 7},
     number = {1},
     year = {1883},
     language = {fr},
     url = {http://archive.numdam.org/item/BSMA_1883_2_7_1_42_1/}
}