TY  - JOUR
AU  - Bostan, Mihai
AU  - Sonnendrücker, Eric
TI  - Periodic solutions for nonlinear elliptic equations. Application to charged particle beam focusing systems
JO  - ESAIM: Modélisation mathématique et analyse numérique
PY  - 2006
SP  - 1023
EP  - 1052
VL  - 40
IS  - 6
PB  - EDP-Sciences
UR  - http://archive.numdam.org/articles/10.1051/m2an:2006039/
DO  - 10.1051/m2an:2006039
LA  - en
ID  - M2AN_2006__40_6_1023_0
ER  -