DUREN, P.; LEHTO, O. Schwarzian derivatives and homeomorphic extensions. Annales Fennici Mathematici, [S. l.], n. 477, 1971. DOI: 10.5186/aasfm.1971.477. Disponível em: https://afm.journal.fi/article/view/134133. Acesso em: 26 nov. 2024.