KUUSALO, T. Boundary mappings of geometric isomorphisms of fuchsian groups. Annales Fennici Mathematici, [S. l.], n. 545, 1973. DOI: 10.5186/aasfm.1973.545. Disponível em: https://afm.journal.fi/article/view/134201. Acesso em: 25 nov. 2024.