%0 Journal Article
%A Georgi Dzhelepov
%T Spheres and circles in the tangent space at a point on a Riemannian manifold with respect to an indefinite metric
%J Novi Sad Journal of Mathematics
%D 2018
%P 143 - 150
%V 48
%N 1
%U http://geodesic.mathdoc.fr/articles/10.30755/NSJOM.07233/
%R 10.30755/NSJOM.07233
%F 10.30755/NSJOM.07233