jgg     2007 27 (增刊):  47-48    ISSN: 0412-1961  CN: 21-1139/TG ON CALCULATION METHODS FOR GEOCENTER MOTION WITH SLR Li Xin 1,2) ; Guo Tangyong 1,2) ; Zhang Nian 1,2) ; Luo Tiantian 1,2) ;Wang Peiyuan 1,2) ; and Zou Tong 1,2) 1)Institute of Seismology, CEA, Wuhan 4300712)Crustal Movement Laboratory, CEA, Wuhan 430071 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null