K. AL- SAIDY, Sahib; ESA ABDUL NABY, Zainab. Approximation of Functions by Means of the Modulus. Journal of Al-Qadisiyah for Computer Science and Mathematics, [S. l.], v. 3, n. 2, p. 156–165, 2017. Disponível em: https://jqcsm.qu.edu.iq/index.php/journalcm/article/view/285. Acesso em: 19 sep. 2024.