Detections of 21 cm absorption with a blind FAST survey at z ≤ 0.09 Wenkai Hu, Yougang Wang, Yichao Li, Yidong Xu, Wenxiu Yang, Guilaine Lagache, Ue-Li Pen, Zheng Zheng, Shuanghao Shu, Yinghui Zheng et al. (3 more) A&A, 675 (2023) A40 Published online: 29 June 2023 DOI: 10.1051/0004-6361/202245549