Bernini F, Bieganowski B, Strzelecki D. Note on homoclinic solutions to nonautonomous Hamiltonian systems with sign-changing nonlinear part. TMNA [Internet]. 2026 Mar. 22 [cited 2026 Apr. 9];:1-18. Available from: https://apcz.umk.pl/TMNA/article/view/70079