TUKIA, P. Extension of boundary homeomorphisms of discrete groups of the unit disk. Annales Fennici Mathematici, [S. l.], n. 548, 1973. DOI: 10.5186/aasfm.1973.548. Disponível em: https://afm.journal.fi/article/view/134204. Acesso em: 25 nov. 2024.