@article{ZVMMF_2007_47_8_a4,
     author = {M. M. Potapov},
     title = {Finite-difference approximation of dirichlet observation problems for weak solutions to the wave equation subject to {Robin} boundary conditions},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1323--1339},
     publisher = {mathdoc},
     volume = {47},
     number = {8},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2007_47_8_a4/}
}