Jing, Zhao, Qiao Wei, Wang Wei, Gao Fang, and Xiao Zheng. 2016. “Anaerobic Digestion of Heat Treated Sludge Liquor by Pilot Scale Mesophilic EGSB Reactor”. International Journal of Agricultural and Biological Engineering 9 (3):146-53. https://ijabe.migration.pkpps06.publicknowledgeproject.org/index.php/ijabe/article/view/2371.