@article{SDPP_1967-1968__9_2_A3_0, author = {A'campo, Norbert}, title = {Th\'eor\`eme de pr\'eparation diff\'erentiable ultra-m\'etrique}, journal = {S\'eminaire Delange-Pisot-Poitou. Th\'eorie des nombres}, note = {talk:17}, publisher = {Secr\'etariat math\'ematique}, volume = {9}, number = {2}, year = {1967-1968}, zbl = {0188.19304}, mrnumber = {244240}, language = {fr}, url = {http://www.numdam.org/item/SDPP_1967-1968__9_2_A3_0/} }