@article{PPN235181684_0268+dmdlog55,
title = {Homoclinic, Heteroclinic, and Periodic Orbits for a Class of Indefinite Hamiltonian Systems.},
journal = {Mathematische Annalen},
volume = {268},
year = {1984},
pages = {387-404},
zbl = {0569.70017},
url = {http://dml.mathdoc.fr/item/PPN235181684_0268+dmdlog55}
}
Hofer, Helmut; Toland, John. Homoclinic, Heteroclinic, and Periodic Orbits for a Class of Indefinite Hamiltonian Systems.. Mathematische Annalen, Tome 268 (1984) pp. 387-404. http://gdmltest.u-ga.fr/item/PPN235181684_0268+dmdlog55/