MIHĂILESCU, Mihai; RĂDULESCU, Vicenţiu D.; TERSIAN, Stepan. Homoclinic solutions of difference equations with variable exponents. Topological Methods in Nonlinear Analysis, [S. l.], v. 38, n. 2, p. 277–289, 2011. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2011.033. Acesso em: 8 jul. 2025.