@article{MZM_2000_68_5_a4,
     author = {V. V. Kornienko},
     title = {On the {Spectrum} of {Degenerate} {Operator} {Equations}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {677--691},
     publisher = {mathdoc},
     volume = {68},
     number = {5},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2000_68_5_a4/}
}