Rhoades, B. E. 2002. “On the Degree of Approximation of the Conjugate of a Function Belonging to the Weighted $ W(L^p, \xi(t))$ Class by Matrix Means of the Conjugate Series of a Fourier Series”. Tamkang Journal of Mathematics 33 (4):365-70. https://doi.org/10.5556/j.tkjm.33.2002.285.