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@article{MZM_1996_59_4_a7, author = {A. G. Losev}, title = {On the hyperbolicity criterion for noncompact {Riemannian} manifolds of special type}, journal = {Matemati\v{c}eskie zametki}, pages = {558--564}, publisher = {mathdoc}, volume = {59}, number = {4}, year = {1996}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1996_59_4_a7/} }
A. G. Losev. On the hyperbolicity criterion for noncompact Riemannian manifolds of special type. Matematičeskie zametki, Tome 59 (1996) no. 4, pp. 558-564. http://geodesic.mathdoc.fr/item/MZM_1996_59_4_a7/