@article{NAM_1882_3_1__5_0,
     author = {Halphen},
     title = {Sur un crit\'erium relatif \`a la th\'eorie des sections coniques},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {5--7},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {3e s{\'e}rie, 1},
     year = {1882},
     language = {fr},
     url = {http://www.numdam.org/item/NAM_1882_3_1__5_0/}
}