PHIANGSUNGNOEN, S. Ulam-Hyers Stability and Well-posedness of the Fixed Point Problems for Contractive Multi-valued Operator in \(b\)-metric Spaces. Communications in Mathematics and Applications, [S. l.], v. 7, n. 3, p. 241–262, 2016. DOI: 10.26713/cma.v7i3.434. Disponível em: https://www.rgnpublications.com/journals/index.php/cma/article/view/434. Acesso em: 29 apr. 2024.