Ren, Haiwei, Zili Mei, Wenguang Fan, Yujie Wang, Feifei Liu, Tao Luo, Dong Li, Zhizhong Li, and Rong Feng. 2018. “Effects of Temperature on the Performance of Anaerobic Co-Digestion of Vegetable Waste and Swine Manure”. International Journal of Agricultural and Biological Engineering 11 (1):218-25. https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/3706.