NADIA ISMAIL EL BERGALI. Analysis For the General Term of a Cauchy Product of Two Series of the Truncation Error of Restrictive Approximations. مجلة جامعة فزان العلمية, [S. l.], v. 2, n. 1, 2023. Disponível em: https://fezzanu.edu.ly/fusj/index.php/FUAJ/article/view/47. Acesso em: 7 2025.