@article{NAM_1908_4_8__503_1,
     author = {T\^etu},
     title = {D\'emonstration de quelques propri\'et\'es de l'ellipse},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {503--505},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {4e s{\'e}rie, 8},
     year = {1908},
     language = {fr},
     url = {http://archive.numdam.org/item/NAM_1908_4_8__503_1/}
}