%0 Journal Article %A N. A. Karpenko %T Cohomology of relative cellular spaces and of isotropic flag varieties %J Algebra i analiz %D 2000 %P 3-69 %V 12 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_2000_12_1_a0/ %G ru %F AA_2000_12_1_a0