@article{01278980,
title = {Basepoint freeness for nef and big line bundles in positive characteristic.},
journal = {Annals of Mathematics. Second Series},
volume = {150},
year = {1999},
pages = {253-286},
doi = {10.2307/121025},
zbl = {0954.14004},
language = {en},
url = {http://dml.mathdoc.fr/item/01278980}
}
Keel, Seán. Basepoint freeness for nef and big line bundles in positive characteristic.. Annals of Mathematics. Second Series, Tome 150 (1999) pp. 253-286. doi : 10.2307/121025. http://gdmltest.u-ga.fr/item/01278980/