@article{00540683,
title = {Homoclinic orbits for a class of symmetric Hamiltonian systems.},
journal = {Electronic Journal of Differential Equations (EJDE) [electronic only]},
volume = {1994/02},
year = {1994},
zbl = {0788.34042},
language = {en},
url = {http://dml.mathdoc.fr/item/00540683}
}
Korman, Philip; Lazer, Alan C. Homoclinic orbits for a class of symmetric Hamiltonian systems.. Electronic Journal of Differential Equations (EJDE) [electronic only], Tome 1994/02 (1994) . http://gdmltest.u-ga.fr/item/00540683/