@article{GAU_1974-1975__2__A9_0,
     author = {Robba, Philippe},
     title = {Factorisation d'un op\'erateur diff\'erentiel. {Applications}},
     journal = {Groupe d'\'etude d'analyse ultram\'etrique},
     note = {talk:10},
     pages = {1--6},
     year = {1974-1975},
     publisher = {Secr\'etariat math\'ematique},
     volume = {2},
     mrnumber = {572967},
     zbl = {0348.12107},
     language = {fr},
     url = {https://www.numdam.org/item/GAU_1974-1975__2__A9_0/}
}