BABENKO, V. F.; KOVALENKO, O. V. On the dependence of the norm of a function on the norms of its derivatives of orders $k$ , $r - 2$ and $r , 0 < k < r - 2$. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 64, n. 5, p. 597–603, 2012. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2600. Acesso em: 5 dec. 2025.