LI, Z. The lower bound of the maximal dilatation of the Beurling-Ahlfors extension. Annales Fennici Mathematici, [S. l.], v. 15, n. 1, p. 75–81, 1990. DOI: 10.5186/aasfm.1990.1522. Disponível em: https://afm.journal.fi/article/view/134679. Acesso em: 25 nov. 2024.