ZABOLOTSKII, N. V. Asymptotics of the logarithmic derivative of an entire function of zero order. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 51, n. 1, p. 32–40, 1999. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4580. Acesso em: 5 dec. 2025.