TY - SEISMOLOGY AND GEOLOGY A1 - ZHANG Shi-di, LIU Li-qiang, LIU Pei-xun, CHEN Guo-qiang T1 - OBSERVATIONS ON ULTRAHIGH FREQUENCY EARTHQUAKE SIGNAL Y1 - 2014-03-30 JF - SEISMOLOGY AND GEOLOGY JO - SEISMOLOGY AND GEOLOGY SP - 230 EP - 242 VL - 36 IS - 1 UR - https://www.dzdz.ac.cn N1 - 10.3969/j.issn.0253-4967.2014.02.019 ER -