PRIZZI, Martino; RYBAKOWSKI, Krzysztof P. Some recent results on thin domain problems. Topological Methods in Nonlinear Analysis, [S. l.], v. 14, n. 2, p. 239–255, 1999. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.1999.031. Acesso em: 25 apr. 2025.