RHOADES, B. E. An Extension of Two Results of Hardy. Sarajevo Journal of Mathematics, [S. l.], v. 9, n. 1, p. 95–100, 2024. DOI: 10.5644/SJM.09.1.08. Disponível em: https://sjm.anubih.ba/index.php/sjm/article/view/250. Acesso em: 4 dec. 2024.