%0 Journal Article
%A V. S. Matveev
%A P. Topalov
%T A metric on a sphere that is geodesically equivalent to itself a metric of constant curvature is a metric of constant curvature
%J Vestnik Moskovskogo universiteta. Matematika, mehanika
%D 1998
%P 53-55
%N 5
%U http://geodesic.mathdoc.fr/item/VMUMM_1998_5_a10/
%G ru
%F VMUMM_1998_5_a10