CHE, Guofeng; CHEN, Haibo. Ground state solutions for a class of semilinear elliptic systems with sum of periodic and vanishing potentials. Topological Methods in Nonlinear Analysis, [S. l.], v. 51, n. 1, p. 215–242, 2017. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2017.046. Acesso em: 8 jul. 2025.