APPELL, J.; VÄTH, M.; VIGNOLI, A. $\mathcal F$-epi maps. Topological Methods in Nonlinear Analysis, [S. l.], v. 18, n. 2, p. 373–393, 2001. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2001.040. Acesso em: 25 apr. 2024.