HIDALGO, Rubén A.; COSTA, Antonio F. Anticonformal automorphisms and Schottky coverings. Annales Fennici Mathematici, [S. l.], v. 26, n. 2, p. 489–508, 2001. Disponível em: https://afm.journal.fi/article/view/135019. Acesso em: 17 dec. 2025.