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Zhipeng Zhang;Qian Ping;Dan Gao;Peter A. Vanrolleghem;Yongmei Li;. (2021). Effects of ferric-phosphate forms on phosphorus release and the performance of anaerobic fermentation of waste activated sludge . Bioresource Technology, (), –. doi:10.1016/j.biortech.2020.124622 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research