@article{DE_1983_19_4_a7,
     author = {A. S. Blagoveshchenskii and S. I. Kabanikhin},
     title = {Inverse problem of the theory of wave propagation in a semi-infinite nonregular waveguide},
     journal = {Differencialʹnye uravneni\^a},
     pages = {603--607},
     publisher = {mathdoc},
     volume = {19},
     number = {4},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1983_19_4_a7/}
}