MASKIT, B. Comparison of hyperbolic and extremal lengths. Annales Fennici Mathematici, [S. l.], v. 10, n. 1, p. 381–386, 1985. DOI: 10.5186/aasfm.1985.1042. Disponível em: https://afm.journal.fi/article/view/134537. Acesso em: 25 nov. 2024.