LA ROSA, Vincenzo; VETRO, Pasquale. On fixed points for for alpha–eta–psi-contractive multi-valued mappings in partial metric spaces. Nonlinear Analysis: Modelling and Control, [S. l.], v. 20, n. 3, p. 377–394, 2015. DOI: 10.15388/NA.2015.3.5. Disponível em: https://www.journals.vu.lt/nonlinear-analysis/article/view/13521. Acesso em: 11 apr. 2025.