%0 Journal Article
%A V. I. Zubov
%T Focusing of charged particles in the vicinity of a given equilibrium trajectory
%J Differencialʹnye uravneniâ
%D 1977
%P 1330-1332
%V 13
%N 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1977_13_7_a22/
%G ru
%F DE_1977_13_7_a22