CHEN, M.; LI, Q. A singular perturbed problem with critical Sobolev exponent. Topological Methods in Nonlinear Analysis, [S. l.], v. 58, n. 1, p. 181–207, 2021. DOI: 10.12775/TMNA.2020.067. Disponível em: https://apcz.umk.pl/TMNA/article/view/35211. Acesso em: 25 apr. 2024.