@article{10_5427_jsing_2013_7d,
     author = {Terence Gaffney and Nivaldo G. Grulha and Jr.},
     title = {The {Multiplicity} {Polar} {Theorem,} {Collections} of 1-forms and {Chern} {Numbers}},
     journal = {Journal of Singularities},
     pages = {39--60},
     publisher = {mathdoc},
     volume = {7},
     year = {2013},
     doi = {10.5427/jsing.2013.7d},
     url = {http://geodesic.mathdoc.fr/articles/10.5427/jsing.2013.7d/}
}