- Vittorio Coti Zelati, Marta Macrì, “Multibump solutions homoclinic to periodic orbits of large energy in a centre manifold”, Nonlinearity, 18, № 6, 2005, 2409
- Antonio J Ureña, “Instability of closed orbits obtained by minimization*”, Nonlinearity, 35, № 10, 2022, 5193
- Piermarco Cannarsa, Wei Cheng, “Homoclinic orbits and critical points of barrier functions”, Nonlinearity, 28, № 6, 2015, 1823