@article{NAM_1924_5_3__70_1,
     author = {Bloch, A.},
     title = {Les propri\'et\'es diam\'etrales des coniques d\'eduites de la d\'efinition focale},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {70--73},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {5e s{\'e}rie, 3},
     year = {1924},
     language = {fr},
     url = {http://archive.numdam.org/item/NAM_1924_5_3__70_1/}
}