ROMANYUK, A. S.; ROMANYUK, V. S. Approximating characteristics of the classes of periodic multivariate functions in the space $B_{∞,1}$. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 71, n. 2, p. 271–282, 2019. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1437. Acesso em: 7 apr. 2025.