@article{NAM_1849_1_8__130_0,
     author = {Breton de Champ, Ph.},
     title = {Suite de la question 31},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {130--131},
     publisher = {Bachelier},
     volume = {1e s{\'e}rie, 8},
     year = {1849},
     language = {fr},
     url = {http://www.numdam.org/item/NAM_1849_1_8__130_0/}
}