@article{02100262,
title = {Existence of solutions to a Hamiltonian system without convexity condition on the nonlinearity.},
journal = {Electronic Journal of Differential Equations (EJDE) [electronic only]},
volume = {2004},
year = {2004},
zbl = {1065.34039},
language = {en},
url = {http://dml.mathdoc.fr/item/02100262}
}
Spradlin, Gregory S. Existence of solutions to a Hamiltonian system without convexity condition on the nonlinearity.. Electronic Journal of Differential Equations (EJDE) [electronic only], Tome 2004 (2004) . http://gdmltest.u-ga.fr/item/02100262/