@article{MZM_1971_10_3_a10,
     author = {Yu. A. Volkov and S. M. Vladimirova},
     title = {Isometric immersions of a {Euclidean} plane in {Lobachevskii} space},
     journal = {Matemati\v{c}eskie zametki},
     pages = {327--332},
     publisher = {mathdoc},
     volume = {10},
     number = {3},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1971_10_3_a10/}
}