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@article{DAN_1971_197_4_a12, author = {A. V. Pogorelov}, title = {On the mean curvature of an infinite complete convex surface}, journal = {Doklady Akademii Nauk}, pages = {788--789}, publisher = {mathdoc}, volume = {197}, number = {4}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1971_197_4_a12/} }
A. V. Pogorelov. On the mean curvature of an infinite complete convex surface. Doklady Akademii Nauk, Tome 197 (1971) no. 4, pp. 788-789. http://geodesic.mathdoc.fr/item/DAN_1971_197_4_a12/