@article{GOU Jia-ning_252, author = {GOU Jia-ning, LIU Zi-wei, JIANG Ying, ZHANG Xiao-tong}, title = {GRAVITY PERTURBATION AND CHARACTERISTICS OF TEM-PORAL AND SPATIAL CHANGES OF BACKGROUND NOISE BE-FORE EARTHQUAKE: THE EXAMPLE OF MADUO MS7.4 AND YANGBI MS6.4 EARTHQUAKES}, publisher = {SEISMOLOGY AND GEOLOGY}, year = {2023}, journal = {SEISMOLOGY AND GEOLOGY}, volume = {45}, number = {1}, eid = {252}, pages = {252-268}, keywords = {;Yangbi #i#M#/i##sub#S#/sub#6.4 earthquake;Maduo #i#M#/i##sub#S#/sub#7.4 earthquake;gravity perturbation;seismic background noise;permutation entropy}, doi = https://www.dzdz.ac.cn/EN/10.3969/j.issn.0253-4967.2023.01.014 }