@article{GDZPPN002219042, title = {The p-Rank of Artin-Schreier Curves.}, journal = {Manuscripta mathematica}, volume = {17}, year = {1975}, pages = {169-194}, zbl = {0321.14017}, url = {http://dml.mathdoc.fr/item/GDZPPN002219042} }
Subrao, Doré. The p-Rank of Artin-Schreier Curves.. Manuscripta mathematica, Tome 17 (1975) pp. 169-194. http://gdmltest.u-ga.fr/item/GDZPPN002219042/