@misc{BSMA_1877_2_1_1_45_0, title = {Comptes rendus et analyses}, journal = {Bulletin des Sciences Math\'ematiques et Astronomiques}, pages = {45--54}, publisher = {Gauthier-Villars}, volume = {2e s{\'e}rie, 1}, number = {1}, year = {1877}, language = {fr}, url = {http://archive.numdam.org/item/BSMA_1877_2_1_1_45_0/} }