Lal, Shyam. 2000. “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 31 (4):279-88. https://doi.org/10.5556/j.tkjm.31.2000.385.