@article{DE_1968_4_8_a15,
     author = {V. A. Bla\v{s}\v{c}ak},
     title = {An analogue of the inverse problem of scattering theory for a nonselfadjoint {operator.~I}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1519--1533},
     publisher = {mathdoc},
     volume = {4},
     number = {8},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1968_4_8_a15/}
}