The Banach contraction principle: generalizations, extensions and its inverse. Letters in Nonlinear Analysis and its Applications, [S. l.], v. 2, n. 4, p. 184–199, 2024. Disponível em: https://lettersinnonlinearanalysis.com/index.php/lnaa/article/view/v2n4a39. Acesso em: 24 may. 2026.