@article{GAU_1974-1975__2__A2_0,
     author = {Robba, Philippe and Dwork, B.},
     title = {Factorisation d'un op\'erateur diff\'erentiel},
     journal = {Groupe de travail d'analyse ultram\'etrique},
     note = {talk:2},
     pages = {1--16},
     publisher = {Secr\'etariat math\'ematique},
     volume = {2},
     year = {1974-1975},
     mrnumber = {572966},
     zbl = {0348.12106},
     language = {fr},
     url = {http://www.numdam.org/item/GAU_1974-1975__2__A2_0/}
}