@article{10_1090_S0894_0347_1991_1119200_3,
     author = {Coti Zelati, Vittorio and Rabinowitz, Paul H.},
     title = {Homoclinic orbits for second order {Hamiltonian} systems possessing superquadratic potentials},
     journal = {Journal of the American Mathematical Society},
     pages = {693--727},
     publisher = {mathdoc},
     volume = {04},
     number = {4},
     year = {1991},
     doi = {10.1090/S0894-0347-1991-1119200-3},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-1991-1119200-3/}
}