@article{IVM_1982_5_a11,
     author = {M. I. Belishev},
     title = {Inverse spectral problem for a~trinomial recurrence formula (the case of variable sign)},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {70--72},
     publisher = {mathdoc},
     number = {5},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1982_5_a11/}
}