TY  - JOUR
AU  - A. G. Baskakov
AU  - D. B. Didenko
TI  - Spectral Analysis of Operator Polynomials and Second-Order Differential Operators
JO  - Matematičeskie zametki
PY  - 2020
SP  - 490
EP  - 506
VL  - 108
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_2020_108_4_a1/
LA  - ru
ID  - MZM_2020_108_4_a1
ER  -