$C^p$ Condition and the Best Local Approximation. Analysis in Theory and Applications, [S. l.], v. 31, n. 1, p. 58–67, 2017. DOI: 10.4208/ata.2015.v31.n1.5. Disponível em: https://www.global-sci.com/index.php/ata/article/view/8046. Acesso em: 5 dec. 2025.