@article{GDZPPN002331683,
title = {Quadratic Forms and Holomorphic Foliations on Singular Surfaces.},
journal = {Mathematische Annalen},
volume = {280},
year = {1988},
pages = {177-184},
zbl = {0657.32007},
url = {http://dml.mathdoc.fr/item/GDZPPN002331683}
}
Camacho, César. Quadratic Forms and Holomorphic Foliations on Singular Surfaces.. Mathematische Annalen, Tome 280 (1988) pp. 177-184. http://gdmltest.u-ga.fr/item/GDZPPN002331683/