Zhu Qi, Ma Xin, Cao Xing, Ni Bin-Bin, Xiang Zheng, Fu Song, Gu Xu-Dong, Zhang Yuan-Nong. Assessment of applicability of cold plasma dispersion relation of slot region hiss based on Van Allen Probes observationsJ. Acta Physica Sinica, 2022, 71(5): 051101. DOI: 10.7498/aps.71.20211671