RADZIEVSKII, G. V. Moduli of continuity defined by zero continuation of functions and K-functionals with restrictions. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 48, n. 11, p. 1537–1554, 1996. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5208. Acesso em: 6 dec. 2025.