FilevychP. V. “On the London Theorem Concerning the Borel Relation for Entire Functions”. Ukrains’kyi Matematychnyi Zhurnal 50, no. 11 (November 25, 1998): 1578–1580. Accessed November 24, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/4814.