KALYANI, K.; SESHAGIRI RAO, N. Coincidence point results of nonlinear contractive mappings in partially ordered metric spaces. CUBO, A Mathematical Journal, [S. l.], v. 23, n. 2, p. 207–224, 2021. DOI: 10.4067/S0719-06462021000200207. Disponível em: https://cubo.ufro.cl/ojs/index.php/cubo/article/view/2711. Acesso em: 26 apr. 2024.