@article{ZNSL_1997_249_a3,
     author = {M. I. Belishev},
     title = {On a uniqueness of the recovering low-order terms in the wave equation via dynamical boundary measurements},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {55--76},
     publisher = {mathdoc},
     volume = {249},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1997_249_a3/}
}