@article{GDZPPN002236419, title = {Hyperelliptic Curves with zero Hasse-Witt-Matrix.}, journal = {Manuscripta mathematica}, volume = {86}, year = {1995}, pages = {185-194}, zbl = {0833.14021}, url = {http://dml.mathdoc.fr/item/GDZPPN002236419} }
Valentini, Robert C. Hyperelliptic Curves with zero Hasse-Witt-Matrix.. Manuscripta mathematica, Tome 86 (1995) pp. 185-194. http://gdmltest.u-ga.fr/item/GDZPPN002236419/