Long, Wang, et al. “Comparative Investigations on Pilot-Scale Anaerobic Digestion of Food Waste at 30°C and 35°C”. International Journal of Agricultural and Biological Engineering, vol. 9, no. 1, Jan. 2016, pp. 109-17, https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/1748.