@article{DAN_1974_218_2_a11,
     author = {V. G. Romanov},
     title = {On the uniqueness of the definition of an isotropic {Riemannian} metric inside a domain in terms of the distances between points of the boundary},
     journal = {Doklady Akademii Nauk},
     pages = {295--297},
     publisher = {mathdoc},
     volume = {218},
     number = {2},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1974_218_2_a11/}
}