@article{NAM_1856_1_15__257_0,
     author = {Catalan},
     title = {Exercices d'alg\`ebre extraits du manuel des candidats \`a {l'\'Ecole} polytechnique},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {257--258},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {1e s{\'e}rie, 15},
     year = {1856},
     language = {fr},
     url = {http://www.numdam.org/item/NAM_1856_1_15__257_0/}
}