%0 Journal Article
%A Ya. Shapiro
%T Geodesical direction fields and the group of similitudes in the space of affine connection
%J Doklady Akademii Nauk
%D 1958
%P 481-484
%V 120
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1958_120_3_a10/
%G ru
%F DAN_1958_120_3_a10