%0 Journal Article %A M. I. Graev %T A Problem of Integral Geometry Related to a Triple of Grassmann Manifolds %J Funkcionalʹnyj analiz i ego priloženiâ %D 2000 %P 78-81 %V 34 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_2000_34_4_a7/ %G ru %F FAA_2000_34_4_a7