BOGDAN, Marcel. Fan-hemicontinuity for the gradient of the norm in several reflexive Banach spaces. Topological Methods in Nonlinear Analysis, [S. l.], v. 66, n. 1, p. 71–89, 2025. DOI: 10.12775/TMNA.2024.061. Disponível em: https://apcz.umk.pl/TMNA/article/view/65989. Acesso em: 12 dec. 2025.