Multi–frequency (UHF, L, S) scintillation at low latitudes during solar minimum: Scale–dependent irregularity response from multi–instrument observations - Zhaohui Xu; Gang Chen; Yaxian Li; Min Zhang; Zhengwen Xu; Haisheng Zhao; Shouzhi Xie; Yuanlin Jia; Chunxiao Yan; Wanlin Gong (Advances in Space Research, 2026)