%0 Journal Article %T On Geodesics of a Modified Riemannian Manifold %J Canadian mathematical bulletin %D 1960 %P 255-261 %V 3 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1960-032-0/ %R 10.4153/CMB-1960-032-0 %F 10_4153_CMB_1960_032_0