MASKIT, B. On extended quasifuchsian groups. Annales Fennici Mathematici, [S. l.], v. 15, n. 1, p. 53–64, 1990. DOI: 10.5186/aasfm.1990.1523. Disponível em: https://afm.journal.fi/article/view/134677. Acesso em: 14 apr. 2025.