@article{GDZPPN002096234, title = {On the Ramification of Branched Coverings of IPn.}, journal = {Inventiones mathematicae}, volume = {56}, year = {1980}, pages = {53-58}, zbl = {0422.14010}, url = {http://dml.mathdoc.fr/item/GDZPPN002096234} }
Lazarsfeld, Robert; Gaffney, Terence. On the Ramification of Branched Coverings of IPn.. Inventiones mathematicae, Tome 56 (1980) pp. 53-58. http://gdmltest.u-ga.fr/item/GDZPPN002096234/