@article{ZVMMF_2017_57_4_a2,
     author = {D. A. Ivanov and M. M. Potapov},
     title = {Approximations to time-optimal boundary controls for weak generalized solutions of the wave equation},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {605--624},
     year = {2017},
     volume = {57},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2017_57_4_a2/}
}