@article{NAM_1867_2_6__420_1,
     author = {Annequin, A. and Morel, J.},
     title = {Solution de la question propos\'ee au concours d'admission \`a {l'\'Ecole} normale sup\'erieure (ann\'ee 1866)},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {420--423},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {2e s{\'e}rie, 6},
     year = {1867},
     language = {fr},
     url = {http://www.numdam.org/item/NAM_1867_2_6__420_1/}
}