no. 2
Opérations cohomologiques, I
Séminaire Henri Cartan, Tome 7 (1954-1955) no. 2, Exposé no. 14, 12 p.
partie suivante Opérations cohomologiques, II 
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     author = {Cartan, H.},
     title = {Op\'erations cohomologiques, {I}},
     journal = {S\'eminaire Henri Cartan},
     note = {talk:14},
     pages = {1--12},
     publisher = {Secr\'etariat math\'ematique},
     volume = {7},
     number = {2},
     year = {1954-1955},
     language = {fr},
     url = {http://archive.numdam.org/item/SHC_1954-1955__7_2_A3_0/}
}
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Cartan, H. Opérations cohomologiques, I. Séminaire Henri Cartan, Tome 7 (1954-1955) no. 2, Exposé no. 14, 12 p. http://archive.numdam.org/item/SHC_1954-1955__7_2_A3_0/

[1] Eilenberg-Maclane - On the groups H(π,n) , III (Ann. of Math., 60, 1954, p. 513-557). | Zbl

[2] Eilenberg-Zilber - Semi-simplicial complexes and singular homology (Ann. of Math. 51, 1950, p. 499-513). | MR | Zbl