BABICH, Yu. P.; MIKHAILOVA, T. F. Fine-grained evaluations of the best estimates for smooth functions in $C_{2\pi}$ in terms of linear combinations of modules of continuity of their derivatives. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 74, n. 4, p. 569–572, 2022. DOI: 10.37863/umzh.v74i4.7124. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/7124. Acesso em: 8 dec. 2025.