Invariant de Hopf (fin)
Séminaire Henri Cartan, Volume 11 (1958-1959) no. 1, Talk no. 6, 12 p.
@article{SHC_1958-1959__11_1_A6_0,
     author = {Cartan, Henri},
     title = {Invariant de Hopf (fin)},
     journal = {S\'eminaire Henri Cartan},
     publisher = {Secr\'etariat math\'ematique},
     volume = {11},
     number = {1},
     year = {1958-1959},
     note = {talk:6},
     language = {fr},
     url = {http://www.numdam.org/item/SHC_1958-1959__11_1_A6_0}
}
Cartan, Henri. Invariant de Hopf (fin). Séminaire Henri Cartan, Volume 11 (1958-1959) no. 1, Talk no. 6, 12 p. http://www.numdam.org/item/SHC_1958-1959__11_1_A6_0/

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