Zhang, Hongqiong, Wenzhe Li, Yong Sun, and Xiangyou Wang. “Enhancement of Biogas Production in Two-Phase Anaerobic Fermentation System for Lower-Temperature Applications”. Journal of Technology Innovations in Renewable Energy 3, no. 3 (August 29, 2014): 120–128. Accessed December 5, 2024. https://mail.lifescienceglobal.com/pms/index.php/jtire/article/view/2285.