YANCHENKO, S.Ya.; RADCHENKO, O.Ya. Approximation characteristics of the isotropic Nikol’skii-Besov functional classes. Carpathian Mathematical Publications, [S. l.], v. 13, n. 3, p. 851–861, 2021. DOI: 10.15330/cmp.13.3.851-861. Disponível em: https://journals.pnu.edu.ua/index.php/cmp/article/view/5649. Acesso em: 19 apr. 2024.