%0 Journal Article
%A A. P. Buslaev
%T On the asymptotics of widths and of spectra of nonlinear differential equations
%J Algebra i analiz
%D 1991
%P 108-118
%V 3
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AA_1991_3_6_a3/
%G ru
%F AA_1991_3_6_a3