TY  - BOOK
AU  - Struwe,Michael
TI  - Variational methods: applications to nonlinear partial differential equations and Hamiltonian systems
SN  - 3-540-58859-0
U1  - 515.64 
PY  - 1990///
CY  - Berlin
PB  - Springer Verlag
KW  - Calculus of variations
KW  - Diferential equations
KW  - Hamilton systems
ER  -