@article{NAM_1884_3_3__315_1,
     author = {Doucet},
     title = {Note sur les syst\`emes triples de surfaces orthogonales},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {315--316},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {3e s{\'e}rie, 3},
     year = {1884},
     language = {fr},
     url = {http://archive.numdam.org/item/NAM_1884_3_3__315_1/}
}