@article{DAN_1986_287_4_a10,
     author = {A. V. Baev},
     title = {A formulation of an inverse boundary value problem for the wave},
     journal = {Doklady Akademii Nauk},
     pages = {818--821},
     publisher = {mathdoc},
     volume = {287},
     number = {4},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1986_287_4_a10/}
}