ANDERSON, G.; LEHTINEN, M.; VUORINEN, M. Conformal invariants in the punctured unit disk. Annales Fennici Mathematici, [S. l.], v. 19, n. 1, p. 133–146, 1994. Disponível em: https://afm.journal.fi/article/view/134802. Acesso em: 17 may. 2024.