Niche differentiation drives microbial community assembly in an anaerobic/oxic/anoxic-aerobic granular sludge (AOA-AGS) system: Insights into Anammox self-enrichment. - Ma, Jingwei; Sun, Hui; Ji, Yaning; He, Qiulai; Chen, Long; Han, Ying; Bi, Peng; Zhu, Liang (Water Research, 2026)