@misc{NAM_1925_6_1__154_1,
     title = {Certificats d'astronomie approfondie},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {154--155},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {6e s{\'e}rie, 1},
     year = {1925},
     language = {fr},
     url = {http://archive.numdam.org/item/NAM_1925_6_1__154_1/}
}