jgg     2014 34 (1):  43-46    ISSN: 0412-1961  CN: 21-1139/TG GROUND SUBSIDENCE RATES OF BEIJING AREA INVERSED  BY PS-INSAR ANALYSIS First Crust Monitoring and Application Center, CEA, Tianjin 300180 Received: 2013-09-28  Revised: null  Online: 2014-01-23 Supporting info