@article{1183534765, author = {Hermann, Robert}, title = {Geodesics of singular Riemannian metrics}, journal = {Bull. Amer. Math. Soc.}, volume = {79}, number = {5}, year = {1973}, pages = { 780-782}, language = {en}, url = {http://dml.mathdoc.fr/item/1183534765} }
Hermann, Robert. Geodesics of singular Riemannian metrics. Bull. Amer. Math. Soc., Tome 79 (1973) no. 5, pp. 780-782. http://gdmltest.u-ga.fr/item/1183534765/