HEJHAL, D. A. Linear extremal problems for analytic functions with interior side connections. Annales Fennici Mathematici, [S. l.], n. 586, 1975. DOI: 10.5186/aasfm.1975.586. Disponível em: https://afm.journal.fi/article/view/134222. Acesso em: 25 nov. 2024.