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Erratum
@article{SHC_1956-1957__9__A1_0, author = {Cartan, H.}, title = {Sur la th\'eorie de {Kan}}, journal = {S\'eminaire Henri Cartan}, note = {talk:1}, pages = {1--19}, publisher = {Secr\'etariat math\'ematique}, volume = {9}, year = {1956-1957}, mrnumber = {111029}, zbl = {0116.40004}, language = {fr}, url = {http://archive.numdam.org/item/SHC_1956-1957__9__A1_0/} }
Cartan, H. Sur la théorie de Kan. Séminaire Henri Cartan, Quelques questions de topologie, Tome 9 (1956-1957), Exposé no. 1, 19 p. http://archive.numdam.org/item/SHC_1956-1957__9__A1_0/