Review of the mechanism and control methods of anaerobic granular sludge calcification - Zhiwei Wang; Keyang Jiang; Yunpeng Zhu; Ling Liu; Xuelian Zou; Xiao Yang; Yihu Xu; Jian Zhang; Yubao Chen; Wenhua Gao; Shuangfei Wang (Journal of Water Process Engineering, 2023)