@article{DAN_1980_255_4_a8,
     author = {V. G. Yakhno},
     title = {A one-dimensional inverse problem for the wave equation},
     journal = {Doklady Akademii Nauk},
     pages = {807--810},
     publisher = {mathdoc},
     volume = {255},
     number = {4},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_255_4_a8/}
}