PFLUGER, A. The Fekete-Szegö inequality by a variational method. Annales Fennici Mathematici, [S. l.], v. 10, n. 1, p. 447–454, 1985. DOI: 10.5186/aasfm.1985.1049. Disponível em: https://afm.journal.fi/article/view/134544. Acesso em: 25 nov. 2024.