DRAGOMIR, Sever S. Inequalities of Lipschitz type for power series in Banach algebras. Annales Mathematicae Silesianae, [S. l.], v. 29, p. 61–83, 2015. Disponível em: https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/13978. Acesso em: 4 jul. 2025.