@article{01084797,
title = {The index of discontinuous vector fields.},
journal = {The New York Journal of Mathematics [electronic only]},
volume = {1},
year = {1995},
pages = {130-148},
zbl = {0883.57025},
language = {en},
url = {http://dml.mathdoc.fr/item/01084797}
}
Gottlieb, Daniel H.; Samaranayake, Geetha. The index of discontinuous vector fields.. The New York Journal of Mathematics [electronic only], Tome 1 (1995) pp. 130-148. http://gdmltest.u-ga.fr/item/01084797/