@article{GDZPPN002099322, title = {F-Isocrystales and De Rham Cohomology. I.}, journal = {Inventiones mathematicae}, volume = {74}, year = {1983}, pages = {159-200}, zbl = {0516.14017}, url = {http://dml.mathdoc.fr/item/GDZPPN002099322} }
Berthelot, P.; Ogus, A. F-Isocrystales and De Rham Cohomology. I.. Inventiones mathematicae, Tome 74 (1983) pp. 159-200. http://gdmltest.u-ga.fr/item/GDZPPN002099322/