Bandura A. І.; SKASKIV, O. B. Boundedness of $L$-index for the composition of entire functions of several variables. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 70, n. 10, p. 1334–1344, 2018. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1639. Acesso em: 5 dec. 2025.