%0 Journal Article %A E. A. Nisnevich %T Nonabelian cohomology and finiteness theorems for integral orbits of affine group schemes %J Izvestiya. Mathematics %D 1975 %P 727-749 %V 9 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1975_9_4_a2/ %G en %F IM2_1975_9_4_a2