V. F. Babenko and O. V. Kovalenko, “On the dependence of the norm of a function on the norms of its derivatives of orders $k$ , $r - 2$ and $r , 0 < k < r - 2$”, Ukr. Mat. Zhurn., vol. 64, no. 5, pp. 597–603, May 2012, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/2600