BAERNSTEIN, A. I.; EREMENKO, A.; FRYNTOV, A.; SOLYNIN, A. Sharp estimates for hyperbolic metrics and covering theorems of Landau type. Annales Fennici Mathematici, [S. l.], v. 30, n. 1, p. 113–133, 2005. Disponível em: https://afm.journal.fi/article/view/135123. Acesso em: 15 may. 2024.