BABENKO, V. F.; SELIVANOVA, S. A. On the connection between certain inequalities of the Kolmogorov type for periodic and nonperiodic functions. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 51, n. 2, p. 147–157, 1999. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4594. Acesso em: 11 apr. 2025.