@article{ZVMMF_1999_39_11_a6,
     author = {A. N. Bogolyubov and A. L. Delitsyn and A. G. Sveshnikov},
     title = {On the problem of excitation of a waveguide filled with an inhomogeneous medium},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1869--1888},
     publisher = {mathdoc},
     volume = {39},
     number = {11},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1999_39_11_a6/}
}