Li Zong-Xiang, Jiang Ru-Bin, Lü Guan-Lin, Liu Ming-Yuan, Sun Zhu-Ling, Zhang Hong-Bo, Liu Kun, Li Xiao-Qiang, Zhang Xiong. Characteristics of rocket-triggered positive lightning flashes and propagation properties of their initial upward negative leadersJ. Acta Physica Sinica, 2021, 70(19): 199201. DOI: 10.7498/aps.70.20210283