@article{ZNSL_1976_62_a4,
     author = {A. S. Blagoveshchenskii and K. K. Lavrent'ev},
     title = {Scattering of nonstationary waves by a one-dimensional obstacle},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {48--51},
     year = {1976},
     volume = {62},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1976_62_a4/}
}