KORTRAM, R. A.; TAMMI, O. Non-homogeneous combinations of coefficients of univalent functions. Annales Fennici Mathematici, [S. l.], v. 5, n. 1, p. 131–144, 1980. DOI: 10.5186/aasfm.1980.0513. Disponível em: https://afm.journal.fi/article/view/134375. Acesso em: 25 nov. 2024.