@article{DAN_1986_287_6_a18,
     author = {A. V. Baev},
     title = {Solution of an inverse problem for the wave equation on an},
     journal = {Doklady Akademii Nauk},
     pages = {1358--1361},
     publisher = {mathdoc},
     volume = {287},
     number = {6},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1986_287_6_a18/}
}