%0 Journal Article %A V. M. Buchstaber %A K. E. Feldman %T The index of an equivariant vector field and addition theorems for Pontryagin classes %J Izvestiya. Mathematics %D 2000 %P 223-247 %V 64 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_2000_64_2_a0/ %G en %F IM2_2000_64_2_a0