TY  - JOUR
AU  - Marcos do Ó,  João
AU  - Ubilla,  Pedro
TI  - A multiplicity result for a class of superquadratic Hamiltonian systems
JO  - Electronic journal of differential equations
PY  - 2003
VL  - 2003
UR  - http://geodesic.mathdoc.fr/item/EJDE_2003__2003__a150/
LA  - en
ID  - EJDE_2003__2003__a150
ER  -