TY  - BOOK
AU  - Cicogna, Giampaolo
AU  - Gaeta, Giuseppe
TI  - Symmetry and perturbation theory in nonlinear dynamics
T2  - Lecture notes in physics
SN  - 3540659048
U1  - 515.35 
PY  - 1999///
CY  - Berlin
PB  - Springer-Verlag
ER  -