STASYUK, S. A. Approximating Characteristics of the Analogs of Besov Classes with Logarithmic Smoothness. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 66, n. 4, p. 493–499, 2014. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2151. Acesso em: 5 dec. 2025.