LAL, S. On the degree of approximation of conjugate of a function belonging to weighted $ W(L^p,\xi(t))$ class by matrix summability means of conjugate series of a Fourier series. Tamkang Journal of Mathematics, [S. l.], v. 31, n. 4, p. 279–288, 2000. DOI: 10.5556/j.tkjm.31.2000.385. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/385. Acesso em: 18 apr. 2024.