%0 Journal Article
%A M. V. Fedoryuk
%T An adiabatic invariant of a system of linear oscillators, and scattering theory
%J Differencialʹnye uravneniâ
%D 1976
%P 1012-1018
%V 12
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1976_12_6_a7/
%G ru
%F DE_1976_12_6_a7