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@article{MZM_1983_34_4_a11, author = {S. A. Shcherbakov}, title = {Regularity of a radial field on a {Hadamard} manifold}, journal = {Matemati\v{c}eskie zametki}, pages = {609--623}, publisher = {mathdoc}, volume = {34}, number = {4}, year = {1983}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1983_34_4_a11/} }
S. A. Shcherbakov. Regularity of a radial field on a Hadamard manifold. Matematičeskie zametki, Tome 34 (1983) no. 4, pp. 609-623. http://geodesic.mathdoc.fr/item/MZM_1983_34_4_a11/