@article{IM2_2000_64_2_a0,
     author = {V. M. Buchstaber and K. E. Feldman},
     title = {The index of an equivariant vector field and addition theorems for {Pontryagin} classes},
     journal = {Izvestiya. Mathematics},
     pages = {223--247},
     year = {2000},
     volume = {64},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2000_64_2_a0/}
}