@article{MAN_1991__291_1_164896,
     author = {X. G\'omez-Mont and J. Seade and A. Verjovsky},
     title = {The index of a holymorphic flow with an isolated singularity.},
     journal = {Mathematische Annalen},
     pages = {737--752},
     publisher = {mathdoc},
     volume = {291},
     number = {1},
     year = {1991},
     zbl = {0725.32012},
     url = {http://geodesic.mathdoc.fr/item/MAN_1991__291_1_164896/}
}