RICKMAN, S. Asymptotic values and angular limits of quasiregular mappings of a ball. Annales Fennici Mathematici, [S. l.], v. 5, n. 1, p. 185–196, 1980. DOI: 10.5186/aasfm.1980.0523. Disponível em: https://afm.journal.fi/article/view/134381. Acesso em: 25 nov. 2024.