@article{NAM_1857_1_16__202_1,
     author = {de Lafitte, P.},
     title = {Neuf th\'eor\`emes de g\'eom\'etrie segmentaire},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {202--207},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {1e s{\'e}rie, 16},
     year = {1857},
     language = {fr},
     url = {http://www.numdam.org/item/NAM_1857_1_16__202_1/}
}