%0 Journal Article
%A M. M. Khapaev
%A V. N. Shinkin
%T Extremal properties of the Lyapunov function on unstable resonance regimes in the multifrequency case
%J Differencialʹnye uravneniâ
%D 1986
%P 1463-1466
%V 22
%N 8
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1986_22_8_a25/
%G ru
%F DE_1986_22_8_a25