@article{DAN_1973_213_2_a8,
     author = {V. M. Isakov},
     title = {On the solvability of an inverse problem in potential theory},
     journal = {Doklady Akademii Nauk},
     pages = {286--288},
     publisher = {mathdoc},
     volume = {213},
     number = {2},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_213_2_a8/}
}