@article{NAM_1906_4_6__271_0,
     author = {du Plessis, Philbert},
     title = {Concours d'admission \`a {l'\'Ecole} polytechnique en 1906. {Composition} de g\'eom\'etrie analytique et m\'ecanique},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {271--283},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {4e s{\'e}rie, 6},
     year = {1906},
     language = {fr},
     url = {http://archive.numdam.org/item/NAM_1906_4_6__271_0/}
}