@article{DAN_1986_290_2_a1,
     author = {A. Kh. Amirov},
     title = {The question of the solvability of inverse problems},
     journal = {Doklady Akademii Nauk},
     pages = {268--270},
     publisher = {mathdoc},
     volume = {290},
     number = {2},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1986_290_2_a1/}
}