@article{ZVMMF_2003_43_8_a5,
     author = {A. B. Bakushinskii and A. I. Kozlov and M. Yu. Kokurin},
     title = {On some inverse problem for a three-dimensional wave equation},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1201--1209},
     year = {2003},
     volume = {43},
     number = {8},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2003_43_8_a5/}
}