Normal Families of Holomorphic Functions Concerning Zero Numbers. Communications in Mathematical Research, [S. l.], v. 34, n. 2, p. 97–105, 2019. DOI: 10.13447/j.1674-5647.2018.02.01. Disponível em: https://www.global-sci.com/index.php/cmr/article/view/8954. Acesso em: 27 feb. 2026.