@article{NAM_1874_2_13__212_1,
     author = {Picart, A.},
     title = {Probl\`eme de {Huyghens}},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {212--219},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {2e s{\'e}rie, 13},
     year = {1874},
     language = {fr},
     url = {http://archive.numdam.org/item/NAM_1874_2_13__212_1/}
}