@article{IM_1972__18_142177,
     author = {Nicholas Katz},
     title = {Algebraic {Solutions} of {Differential} {Equations} {(p-Curvature} and the {Hodge} {Filtration).}},
     journal = {Inventiones mathematicae},
     pages = {1--118},
     publisher = {mathdoc},
     volume = {18},
     year = {1972},
     zbl = {0278.14004},
     url = {http://geodesic.mathdoc.fr/item/IM_1972__18_142177/}
}