KRUSKAL’, S. L. Invariant metrics on Teichmüller spaces and quasiconformal extendability of analytic functions. Annales Fennici Mathematici, [S. l.], v. 10, n. 1, p. 299–303, 1985. DOI: 10.5186/aasfm.1985.1033. Disponível em: https://afm.journal.fi/article/view/134528. Acesso em: 25 nov. 2024.