GRAVITY CHANGES BEFORE THE LUDIAN, YUNNAN, MS6.5 EARTHQUAKE OF 2014 AND THE THREE-DIMENSIONAL INVERSION RESEARCH
SHI Lei, JIA Xiao-dong, CHEN Shi, XU Wei-min, LU Hong-yan
SEISMOLOGY AND GEOLOGY . 2014, (4): 1217 -1227 .  DOI: 10.3969/j.issn.0253-4967.2014.04.022