DYNAMIC VARIATION OF GRAVITY FIELD BEFORE AND AFTER THE MINXIAN-ZHANGXIAN MS6.6 EARTHQUAKE ON JULY 22, 2013, GANSU, CHINA
ZHU Yi-qing, ZHAO Yun-feng, LI Tie-ming, LIANG Wei-feng, XU Yun-ma, GUO Shu-song
SEISMOLOGY AND GEOLOGY . 2014, (3): 667 -676 .  DOI: 10.3969/j.issn.0253-4967.2014.03.010