@article{SD_1956-1957__10__A21_0,
     author = {Zisman, M.},
     title = {Classes de {Chern}},
     journal = {S\'eminaire Dubreil. Alg\`ebre et th\'eorie des nombres},
     note = {talk:23},
     pages = {1--10},
     publisher = {Secr\'etariat math\'ematique},
     volume = {10},
     year = {1956-1957},
     zbl = {0197.49501},
     language = {fr},
     url = {http://www.numdam.org/item/SD_1956-1957__10__A21_0/}
}