Bodnar, O. V., and N. V. Zabolotskii. “Criteria for the Regularity of Growth of the Logarithm of Modulus and the Argument of an Entire Function”. Ukrains’kyi Matematychnyi Zhurnal 62, no. 7 (July 25, 2010): 885–893. Accessed April 28, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/2922.