T. D. NARANG. Best Approximation, Fixed Points and Invariant Approximation in Linear Metric Spaces. Jordan Journal of Mathematics and Statistics, [S. l.], v. 10, n. 3, p. 189–197, 2025. Disponível em: https://jjms.yu.edu.jo/index.php/jjms/article/view/991. Acesso em: 3 oct. 2025.