@article{NAM_1862_2_1__335_0, author = {Janni, Vincenzo}, title = {Question 270}, journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale}, pages = {335--336}, publisher = {Carilian-Goeury et Vor Dalmont}, volume = {2e s{\'e}rie, 1}, year = {1862}, language = {fr}, url = {http://www.numdam.org/item/NAM_1862_2_1__335_0/} }