%0 Journal Article
%A V. M. Frolov
%T The width of the $n$th zone of instability of Mathieu's equation
%J Differencialʹnye uravneniâ
%D 1982
%P 1363-1368
%V 18
%N 8
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1982_18_8_a8/
%G ru
%F DE_1982_18_8_a8