@article{DAN_1968_181_4_a8,
     author = {A. V. Pogorelov},
     title = {An a priori estimate of the principal radii of curvature of a closed convex hypersurface, depending on its {Gaussian} curvature},
     journal = {Doklady Akademii Nauk},
     pages = {802--804},
     publisher = {mathdoc},
     volume = {181},
     number = {4},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_181_4_a8/}
}