KOFANOV, V. A. Inequalities of Different Metrics for Differentiable Periodic Functions, Polynomials, and Splines. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 53, n. 5, p. 597–609, 2001. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4283. Acesso em: 7 apr. 2025.