@article{SE_1958-1960__2__A11_0,
     author = {Feldbau, Jacques},
     title = {Sur la loi de composition entre \'el\'ements des groupes d'homotopie},
     journal = {S\'eminaire de topologie et g\'eom\'etrie diff\'erentielle},
     note = {talk:11},
     pages = {0--17},
     publisher = {Secr\'etariat math\'ematique},
     volume = {2},
     year = {1958-1960},
     zbl = {0168.21102},
     language = {fr},
     url = {http://archive.numdam.org/item/SE_1958-1960__2__A11_0/}
}