jgg     2009 29 (6):  28-31    ISSN: 0412-1961  CN: 21-1139/TG CHARACTER OF COSEISMIC VERTICAL DISPLACEMENT NEAR BEICHUAN DURING WENCHUAN Ms 8.0 EARTHQUAKE Dong Yunhong ;and Chen Changyun First Crust Monitoring and Application Center, CEA, Tianjin 300180 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null