ZELISKO, M. M.; SHEREMETA, M. M. On the Mean Values of the Dirichlet Series. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 56, n. 11, p. 1501–1502, 2004. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3861. Acesso em: 7 apr. 2025.