@article{DAN_1985_283_5_a18,
     author = {A. A. Shkalikov},
     title = {Properties of a part of the eigen- and associated elements of},
     journal = {Doklady Akademii Nauk},
     pages = {1100--1106},
     year = {1985},
     volume = {283},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1985_283_5_a18/}
}