@article{ZVMMF_1999_39_11_a1,
     author = {T. V. Levitina},
     title = {A numerical solution to some three-parameter spectral problems},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1787--1801},
     publisher = {mathdoc},
     volume = {39},
     number = {11},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1999_39_11_a1/}
}