@article{GDZPPN002334534,
title = {Ramification divisors for branched coverings of IPn.},
journal = {Mathematische Annalen},
volume = {287},
year = {1990},
pages = {195-200},
url = {http://dml.mathdoc.fr/item/GDZPPN002334534}
}
Maceda, Hidetoshi. Ramification divisors for branched coverings of IPn.. Mathematische Annalen, Tome 287 (1990) pp. 195-200. http://gdmltest.u-ga.fr/item/GDZPPN002334534/