TAMMI, O. On a method of extremalization in the class Sk of univalent functions. Annales Fennici Mathematici, [S. l.], n. 320, 1963. DOI: 10.5186/aasfm.1963.320. Disponível em: https://afm.journal.fi/article/view/134006. Acesso em: 26 nov. 2024.