FURDUI, Ovidiu; SÎNTĂMĂRIAN, Alina. Series with Harmonic numbers and the tail of \(\zeta(2)\). CUBO, A Mathematical Journal, [S. l.], v. 28, n. 2, p. 247–260, 2026. DOI: 10.56754/0719-0646.2802.247. Disponível em: https://cubo.ufro.cl/index.php/cubo/article/view/4353. Acesso em: 15 may. 2026.