TALLAFHA, A.; KHALIL, R. R. Best Approximation in Uniformity Type Spaces. European Journal of Pure and Applied Mathematics, [S. l.], v. 2, n. 2, p. 231–238, 2009. Disponível em: https://ejpam.com/index.php/ejpam/article/view/259. Acesso em: 5 dec. 2022.