SHEREMETA, M. M. Generalization of the fricke theorem on entire functions of finite index. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 48, n. 3, p. 412–417, 1996. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5338. Acesso em: 5 dec. 2025.