Machado L, I., J. F. Martirena H, I. Herrera M, S. Quiroz, M. J. Lamela R, and R. Gonzalez L. “Improving Energy Efficiency on Production of Clay Ceramic Bricks Using Lignocellulosic-Densified-Material Based Biofuel”. Revista Ingeniería De Construcción, vol. 26, no. 2, Aug. 2011, pp. 208-23, https://horizonteenfermeria.uc.cl/index.php/ric/article/view/16541.