TOPPILA, S. On the value distribution of meromorphic functions with a deficient value. Annales Fennici Mathematici, [S. l.], v. 5, n. 1, p. 179–184, 1980. DOI: 10.5186/aasfm.1980.0527. Disponível em: https://afm.journal.fi/article/view/134380. Acesso em: 25 nov. 2024.