@article{ZVMMF_1998_38_3_a3,
     author = {M. M. Potapov},
     title = {Strong convergence of difference approximations for problems of boundary control and observation for the wave equation},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {387--397},
     publisher = {mathdoc},
     volume = {38},
     number = {3},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1998_38_3_a3/}
}