Bulboacă, T., and N. Tuneski. “Sufficient Conditions for Bounded Turning of Analytic Functions”. Ukrains’kyi Matematychnyi Zhurnal 70, no. 8 (August 25, 2018): 1118-1127. Accessed April 26, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/1622.