García, M, and M Aguirre. “The Convolution Product of the Derivative of the Dirac Delta <i>1-x<sup>2< sup>< I>”;. Nexo Revista Científica 22, no. 2 (September 3, 2010): 66–71. Accessed January 31, 2026. https://www.camjol.info/index.php/NEXO/article/view/45.