%0 Journal Article
%A Bostan, Mihai
%A Sonnendrücker, Eric
%T Periodic solutions for nonlinear elliptic equations. Application to charged particle beam focusing systems
%J ESAIM: Modélisation mathématique et analyse numérique
%D 2006
%P 1023-1052
%V 40
%N 6
%I EDP-Sciences
%U http://archive.numdam.org/articles/10.1051/m2an:2006039/
%R 10.1051/m2an:2006039
%G en
%F M2AN_2006__40_6_1023_0