DOVGOSHEI, A. A.; POTEMKINA, L. L. Analyticity of Higher-Order Moduli of Continuity of Real-Analytic Functions. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 55, n. 6, p. 750–761, 2003. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3950. Acesso em: 7 apr. 2025.