@article{MZM_1977_22_2_a0,
     author = {K. L. Olifirov},
     title = {Determination of a~neighborhood of the imaginary axis which is disjoint from the spectrum of a~real polynomial},
     journal = {Matemati\v{c}eskie zametki},
     pages = {161--166},
     publisher = {mathdoc},
     volume = {22},
     number = {2},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1977_22_2_a0/}
}