@article{IVM_1982_4_a13,
     author = {V. I. Yudovich},
     title = {The spectrum of some bordered selfadjoint operators},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {77--81},
     publisher = {mathdoc},
     number = {4},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1982_4_a13/}
}