@article{GDZPPN002331551,
title = {On Enriques Surfaces in Characteristic p. II.},
journal = {Mathematische Annalen},
volume = {280},
year = {1988},
pages = {671-686},
zbl = {0708.14026},
url = {http://dml.mathdoc.fr/item/GDZPPN002331551}
}
Lang, William E. On Enriques Surfaces in Characteristic p. II.. Mathematische Annalen, Tome 280 (1988) pp. 671-686. http://gdmltest.u-ga.fr/item/GDZPPN002331551/