@article{02100287,
title = {An application of the dual variational principle to a Hamiltonian system with discontinuous nonlinearities.},
journal = {Electronic Journal of Differential Equations (EJDE) [electronic only]},
volume = {2004},
year = {2004},
zbl = {1144.35374},
language = {en},
url = {http://dml.mathdoc.fr/item/02100287}
}
Alves, Claudianor O.; de Morais Filho, Daniel C.; Souto, Marco Aurelio S. An application of the dual variational principle to a Hamiltonian system with discontinuous nonlinearities.. Electronic Journal of Differential Equations (EJDE) [electronic only], Tome 2004 (2004) . http://gdmltest.u-ga.fr/item/02100287/