@article{TIMB_2016_24_2_a5,
     author = {P. P. Zabreiko and A. V. Krivko-Krasko},
     title = {On the calculation of index of a vector field},
     journal = {Trudy Instituta matematiki},
     pages = {44--54},
     publisher = {mathdoc},
     volume = {24},
     number = {2},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMB_2016_24_2_a5/}
}