TY  - BOOK
AU  - Ekeland, Ivar
TI  - Convexity methods in hamiltonian mechanics
SN  - 3-540-50613-6
U1  - 514.74 
PY  - 1990///
CY  - Berlin
PB  - Springer-Verlag
KW  - Hamiltonian systems
N1  - Includes bibliography and index
ER  -