TY  - BOOK
AU  - Mawhin, Jean
AU  - Willem, Michel (jt. auth)
TI  - Critical point theory and Hamiltonian systems
SN  - 038796908X
U1  - 510 
PY  - 1989///
CY  - New York
PB  - Springer-Verlag
KW  - Critical point theory (Mathematical analysis)
N1  - Includes bibliography
ER  -