Zhang, H., Li, W., Sun, Y. and Wang, X. 2014. Enhancement of Biogas Production in Two-Phase Anaerobic Fermentation System for Lower-Temperature Applications. Journal of Technology Innovations in Renewable Energy. 3, 3 (Aug. 2014), 120–128. DOI:https://doi.org/10.6000/1929-6002.2014.03.03.5.