Wang, J., Xu, J. and Zhang, F. (2012) “Infinitely many homoclinic orbits for supperlinear Hamiltonian systems”, Topological Methods in Nonlinear Analysis, 39(1), pp. 1–22. Available at: https://apcz.umk.pl/TMNA/article/view/TMNA.2012.001 (Accessed: 22 July 2024).