@article{ZNSL_1994_210_a0,
     author = {S. A. Avdonin and M. I. Belishev and S. A. Ivanov},
     title = {The controllability in a~filled domain for a~multidimensional wave equation with a~singular boundary control},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {7--21},
     publisher = {mathdoc},
     volume = {210},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1994_210_a0/}
}