Chanagá-Quiroz, T., S. Giraldo-Duarte, and L. Almanza-Pubiano. “Modification of the Zeolite-Matrix Ratio in FCC Catalysts and Its Impact on Yields and Quality of Middle Distillates”. Ingenieria Y Universidad, vol. 13, no. 1, Mar. 2009, https://revistas.javeriana.edu.co/index.php/iyu/article/view/947.