@article{DAN_1975_224_1_a7,
     author = {A. V. Pogorelov},
     title = {Regularity of convex hypersurfaces with a regular metric},
     journal = {Doklady Akademii Nauk},
     pages = {39--42},
     publisher = {mathdoc},
     volume = {224},
     number = {1},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_224_1_a7/}
}