FAYYADH, Mohammed Hamad; AUAD, Alaa Adnan. Trigonometric Approximation by Modulus of Smoothness in Lp,α (X). Al-Mustansiriyah Journal of Science, Baghdad, Iraq, v. 32, n. 3, p. 20–25, 2021. DOI: 10.23851/mjs.v32i3.953. Disponível em: https://mjs.uomustansiriyah.edu.iq/index.php/MJS/article/view/953.. Acesso em: 5 may. 2024.