STASYUK, S. A. Approximation of the Classes $B_{p,θ}^Ω$ of Periodic Functions of Many Variables in Uniform Metric. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 54, n. 11, p. 1551–1559, 2002. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4191. Acesso em: 6 dec. 2025.