%0 Journal Article %A E. E. Petrov %T The Radon transform in matrix spaces and in Grassmann manifolds %J Doklady Akademii Nauk %D 1967 %P 782-785 %V 177 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1967_177_4_a8/ %G ru %F DAN_1967_177_4_a8