Coupled fixed point theorems in partially ordered Gb-metric space. Letters in Nonlinear Analysis and its Applications, [S. l.], v. 4, n. 2, p. 104–116, 2026. DOI: 10.66147/lnaa.20264276. Disponível em: https://lettersinnonlinearanalysis.com/index.php/lnaa/article/view/76. Acesso em: 13 jun. 2026.