TY  - JOUR 
T1  - Finding invariant tori in the problem of a periodically corrugated waveguide
JO  - Brazilian Journal of Physics
A1  - Rabelo, Adriano Fábio
A1  - Leonel, Edson D.
SN  - 0103-9733
UL  - 10.1590/S0103-97332008000100010
VL  - 38 
Y1  - 2008
PB  - Brasil 
ER  -