@article{MM2_1995__86_3_156047,
     author = {Robert C. Valentini},
     title = {Hyperelliptic {Curves} with zero {Hasse-Witt-Matrix.}},
     journal = {Manuscripta mathematica},
     pages = {185--194},
     publisher = {mathdoc},
     volume = {86},
     number = {3},
     year = {1995},
     zbl = {0833.14021},
     url = {http://geodesic.mathdoc.fr/item/MM2_1995__86_3_156047/}
}