@article{NAM_1917_4_17__81_0,
     author = {Hadamard},
     title = {Sur l'\'elimination entre \'equations diff\'erentielles},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {81--84},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {4e s{\'e}rie, 17},
     year = {1917},
     language = {fr},
     url = {http://www.numdam.org/item/NAM_1917_4_17__81_0/}
}