(1) Li KJ, Xu JC, Yin ZQ, Xie JL, Feng W, Investigation of the coronal heating through phase relation of solar activity indexes, 2020, Publications of the Astronomical Society of Australia,37, e001, https://doi.org/10.1017/pasa.2019.43
(2) Li KJ,Feng W. Analysis of the He I chromosphere in relation to the magnetic field activity over solar cycle time periods, 2020, MNRAS, 497(1), 969-975 https://doi.org/10.1093/mnras/staa1973
(3) Li KJ,Xu JC,Xie JL,FengW, Differential Rotation of the Chromosphere in the He I Absorption Line, 2020,ApJL, 905, L11 (8pp)
https://iopscience.iop.org/article/10.3847/2041-8213/abcb84
(4) Li KJ, Feng W, Phase relation of the quiet chromosphere in the He I line with the solar cycle, 2022, Advances in Space Research, 69(5), 2319-2329. https://doi.org/10.1016/j.asr.2021.11.045
(5) Li KJ，Feng W, The quiet chromosphere: Phase relation with the solar cycle, 2022, Advances in Space Research, 70(5), 1539-1546
https://doi.org/10.1016/j.asr.2022.06.003
(6) Li KJ,Xu JC,Feng W, The role and contribution of magnetic fields, characterized via their magnetic flux, to the statistical structuring of the solar atmosphere, 2022, Scientific Reports, 12,15877(12pp). https://doi.org/10.1038/s41598-022-20094-x
(7) Li KJ,Wan M, Feng W, The quiet chr omospher e: differ ential r otation, 2023, MN, 520, 5928–5937. https://doi.org/10.1093/mnras/stad478
