@article{SM_2006_197_7_a5,
     author = {A. I. \`Esterov},
     title = {Indices of 1-forms, intersection indices, and {Newton} polyhedra},
     journal = {Sbornik. Mathematics},
     pages = {1085--1108},
     publisher = {mathdoc},
     volume = {197},
     number = {7},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2006_197_7_a5/}
}