Carlos Manquillo. “Granulometric Distribution of Bed Material in Rivers With Image Processing”. I+ T+ C- Research, Technology and Science - Unicomfacauca 1, no. 1 (December 31, 2007). Accessed July 3, 2024. https://revistas.unicomfacauca.edu.co/ojs/index.php/itc/article/view/21.