@article{DAN_1995_340_1_a3,
     author = {V. A. Kalyagin},
     title = {Characteristics of the spectra of higher-order difference},
     journal = {Doklady Akademii Nauk},
     pages = {15--17},
     publisher = {mathdoc},
     volume = {340},
     number = {1},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1995_340_1_a3/}
}