@article{GDZPPN002228041,
title = {\"Uber Differentialoperatoren und ID-Moduln in positiver Chrakteristik.},
journal = {Manuscripta mathematica},
volume = {58},
year = {1987},
pages = {385-416},
zbl = {0607.14010},
url = {http://dml.mathdoc.fr/item/GDZPPN002228041}
}
Haastert, Burkhard. Über Differentialoperatoren und ID-Moduln in positiver Chrakteristik.. Manuscripta mathematica, Tome 58 (1987) pp. 385-416. http://gdmltest.u-ga.fr/item/GDZPPN002228041/