S.ALHILY, Shatha. A new Proof of Hardy. International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 34, n. 1, p. 276–285, 2017. Disponível em: https://gssrr.org/JournalOfBasicAndApplied/article/view/7454. Acesso em: 18 sep. 2025.