TY  - BOOK
TI  - Symplectic invariants and Hamiltonian dynamics 
SN  - 978-3034801034 | 0817650660 (Boston : alk. paper)
PY  - 1994///
CY  - Basel ; | Boston
PB  - Birkhäuser Verlag
N1  - Birkhäuser advanced texts."
ER  -