BABENKO, V. F.; PARFINOVYCH, N. V. Inequalities of the Bernstein type for splines of defect 2. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 61, n. 7, p. 995–999, 2009. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3074. Acesso em: 5 dec. 2025.