Feasibility Study on Using Atomic Gravimeters for Detecting Urban Underground Spaces. - Zhong-Kun Qiao; Peng Yuan; Ruo Hu; Lin-Ling Li; Kanxing Weng; Hai-Xiang Yang; Zong-Yu Zhang; Jia-Jun Zhang; Dong Zhu; Xue-Min Wu; Xiao-Long Wang; Bin Wu; et al. (IEEE Trans. Instrum. Meas., 2025)