Vyazovs’ka, M. S. “Estimation of the Norm of the Derivative of a Monotone Rational Function in the Spaces $L_p$”. Ukrains’kyi Matematychnyi Zhurnal 61, no. 12 (December 25, 2009): 1713–1719. Accessed April 19, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/3132.