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@article{DAN_1957_115_4_a10, author = {V. A. Toponogov}, title = {On convexity of {Riemannian} spaces of-positive curvature}, journal = {Doklady Akademii Nauk}, pages = {674--676}, publisher = {mathdoc}, volume = {115}, number = {4}, year = {1957}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1957_115_4_a10/} }
V. A. Toponogov. On convexity of Riemannian spaces of-positive curvature. Doklady Akademii Nauk, Tome 115 (1957) no. 4, pp. 674-676. http://geodesic.mathdoc.fr/item/DAN_1957_115_4_a10/