@misc{BSMA_1874__6__258_1,
     title = {Fran\c{c}ois-Xavier de {Zach}},
     journal = {Bulletin des Sciences Math\'ematiques et Astronomiques},
     pages = {258--272},
     publisher = {Gauthier-Villars},
     volume = {6},
     year = {1874},
     language = {fr},
     url = {http://www.numdam.org/item/BSMA_1874__6__258_1/}
}