Bandura A.І. and Skaskiv, O.B. (2018) “Boundedness of $L$-index for the composition of entire functions of several variables”, Ukrains’kyi Matematychnyi Zhurnal, 70(10), pp. 1334–1344. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/1639 (Accessed: 5 December 2025).