%0 Journal Article
%A I. M. Gel'fand
%A M. I. Graev
%A Z. Ya. Shapiro
%T Integral geometry on manifolds of $k$-dimensional planes
%J Doklady Akademii Nauk
%D 1966
%P 1236-1238
%V 168
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1966_168_6_a2/
%G ru
%F DAN_1966_168_6_a2