@article{DAN_1957_116_5_a10,
     author = {Sun Che-shen},
     title = {Some rigidity characters of surfaces of revolution},
     journal = {Doklady Akademii Nauk},
     pages = {758--761},
     publisher = {mathdoc},
     volume = {116},
     number = {5},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_116_5_a10/}
}