TY  - JOUR
AU  - M. V. Fedoryuk
TI  - An adiabatic invariant of a system of linear oscillators, and scattering theory
JO  - Differencialʹnye uravneniâ
PY  - 1976
SP  - 1012
EP  - 1018
VL  - 12
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1976_12_6_a7/
LA  - ru
ID  - DE_1976_12_6_a7
ER  -