Chen, Guanwei. „Homoclinic Orbits of First Order Nonlinear Hamiltonian Systems With Asymptotically Linear Nonlinearities at Infinity”. Topological Methods in Nonlinear Analysis 47, no. 2 (czerwiec 1, 2016): 499–510. Udostępniono lipiec 5, 2025. https://apcz.umk.pl/TMNA/article/view/TMNA.2016.038.