Existence and Uniqueness of Fixed Points in $MR-Metric$ Spaces and Their Applications. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 18, n. 2, p. 6077, 2025. DOI: 10.29020/nybg.ejpam.v18i2.6077. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/6077. Acesso em: 5 dec. 2025.