@misc{NAM_1927_6_2__62_1,
     title = {Certificats de calcul diff\'erentiel et int\'egral},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {62--64},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {6e s{\'e}rie, 2},
     year = {1927},
     language = {fr},
     url = {http://archive.numdam.org/item/NAM_1927_6_2__62_1/}
}