STAROVOITOV, Alexander P.; KECHKO, Elena P.; OSNACH, Tatyana M. On the existence of trigonometric Hermite – Jacobi approximations and non-linear Hermite – Chebyshev approximations. Journal of the Belarusian State University. Mathematics and Informatics, [S. l.], n. 2, p. 6–17, 2023. DOI: 10.33581/2520-6508-2023-2-6-17. Disponível em: https://journals.bsu.by/index.php/mathematics/article/view/5512. Acesso em: 19 jul. 2026.