TY  - BOOK
AU  - Llibre Jaume
AU  - Nunes Ana
TI  - Separatrix surfaces and invariant manifolds of a class of integrable Hamiltonian systems and their perturbations
U1  - 510 
PY  - 1994///
CY  - Providence
PB  - AMS
KW  - Hamiltonian systems
KW  - Invariant manifolds
ER  -