Babenko, V. F., V. A. Kofanov, and S. A. Pichugov. 2002. “On Kolmogorov-Type Inequalities With Integrable Highest Derivative”. Ukrains’kyi Matematychnyi Zhurnal 54 (12), 1694-97. https://umj.imath.kiev.ua/index.php/umj/article/view/4208.