Baksa, V. P., A. I. Bandura, T. M. Salo, and O. B. Skaskiv. “Note on Boundedness of the $L$-Index in the Direction of the Composition of Slice Entire Functions”. Matematychni Studii 58, no. 1 (October 31, 2022): 58-68. Accessed April 29, 2024. http://matstud.org.ua/ojs/index.php/matstud/article/view/361.