PARFINOVYCH, N.V. Non-symmetric approximations of functional classes by splines on the real line. Carpathian Mathematical Publications, [S. l.], v. 13, n. 3, p. 831–837, 2021. DOI: 10.15330/cmp.13.3.831-837. Disponível em: https://journals.pnu.edu.ua/index.php/cmp/article/view/5570. Acesso em: 15 jun. 2024.