@article{MZM_2017_101_3_a1,
     author = {A. G. Baskakov and V. D. Kharitonov},
     title = {Spectral {Analysis} of {Operator} {Polynomials} and {Higher-Order} {Difference} {Operators}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {330--345},
     publisher = {mathdoc},
     volume = {101},
     number = {3},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2017_101_3_a1/}
}