@article{PMIHES_1970__39__175_0,
     author = {Nicholas M. Katz},
     title = {Nilpotent connections and the monodromy theorem : applications of a result of {Turrittin}},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {175--232},
     year = {1970},
     publisher = {Institut des Hautes \'Etudes Scientifiques},
     volume = {39},
     doi = {10.1007/BF02684688},
     mrnumber = {291177},
     zbl = {0221.14007},
     language = {en},
     url = {https://pmihes.centre-mersenne.org/articles/10.1007/BF02684688/}
}