@article{NAM_1863_2_2__5_0,
     author = {de Lys, Ga\"etano},
     title = {Question propos\'ee au concours d'admission \`a {l'\'Ecole} polytechnique (1862)},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {5--7},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {2e s{\'e}rie, 2},
     year = {1863},
     language = {fr},
     url = {http://archive.numdam.org/item/NAM_1863_2_2__5_0/}
}