@article{DAN_1984_275_2_a19,
     author = {A. S. Margulis},
     title = {Uniqueness of the solution of an inverse problem of gravitation},
     journal = {Doklady Akademii Nauk},
     pages = {342--346},
     publisher = {mathdoc},
     volume = {275},
     number = {2},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1984_275_2_a19/}
}