Blandino, Massimo, Claudio Fabbri, Mariangela Soldano, Carlo Ferrero, and Amedeo Reyneri. “The Use of Cobs, a By-Product of Maize Grain, for Energy Production in Anaerobic Digestion”. Italian Journal of Agronomy 11, no. 3 (August 10, 2016): 195-198. Accessed January 22, 2020. https://www.agronomy.it/index.php/agro/article/view/754.