Boschini-Figueroa, C., and J. A. Elizondo-Salazar. “Quality and Fodder Yield of Forage Black Sorghum (Sorghum Almum) for Silage in Mature Ages”. Agronomía Mesoamericana, vol. 16, no. 1, Apr. 2005, pp. 29-36, doi:10.15517/am.v16i1.11875.