%0 Journal Article
%A I. M. Gel'fand
%A M. I. Graev
%A Z. Ya. Shapiro
%T An integral geometry problem connected with a pair of Grassmann manifolds
%J Doklady Akademii Nauk
%D 1970
%P 259-262
%V 193
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1970_193_2_a1/
%G ru
%F DAN_1970_193_2_a1