@article{IVM_1997_10_a11,
     author = {Y. L. Ul'yanova},
     title = {Spectral properties of relatively finite-dimensional perturbations of selfadjoint operators},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {75--78},
     publisher = {mathdoc},
     number = {10},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1997_10_a11/}
}