BULDYGIN, V. V.; PAVLENKOV, V. V. Karamata theorem for regularly log-periodic functions. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 64, n. 11, p. 1443–1463, 2012. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2672. Acesso em: 5 dec. 2025.