@article{SHC_1956-1957__9__A4_1,
     author = {Cartan, Henri},
     title = {Th\'eorie des fibr\'es principaux},
     journal = {S\'eminaire Henri Cartan},
     note = {talk:4},
     pages = {1--12},
     publisher = {Secr\'etariat math\'ematique},
     volume = {9},
     year = {1956-1957},
     mrnumber = {111031},
     zbl = {0199.58101},
     language = {fr},
     url = {http://archive.numdam.org/item/SHC_1956-1957__9__A4_1/}
}