@article{SCC_1956-1958__2__A5_0,
     author = {Chevalley, C.},
     title = {Les isog\'enies},
     journal = {S\'eminaire Claude Chevalley},
     note = {talk:18},
     pages = {1--10},
     publisher = {Secr\'etariat math\'ematique},
     volume = {2},
     year = {1956-1958},
     language = {fr},
     url = {http://www.numdam.org/item/SCC_1956-1958__2__A5_0/}
}