Cruz-Santiago R, López-Bonilla J, López-Vázquez R. Differentiation of Fourier Series via Orthogonal Derivative. J. Inst. Sci. Tech. [Internet]. 2015 Nov. 26 [cited 2024 May 1];20(2):113-4. Available from: https://www.nepjol.info/index.php/JIST/article/view/13963