KELLY, M. R. The Wecken problem for coincidences of boundary preserving surface maps. Topological Methods in Nonlinear Analysis, [S. l.], v. 61, n. 1, p. 353–360, 2023. DOI: 10.12775/TMNA.2022.061. Disponível em: https://apcz.umk.pl/TMNA/article/view/42824. Acesso em: 22 jul. 2024.