EXPERIMENT ON LAND SUBSIDENCE MONITORING BY INSAR
lu xu\+\{1)\} ; kuang shaojun\+\{1)\}; jia youliang\+\{2)\} and huang liren\+\{3)\} 1)tianjin control land subsidence office; tianjin\ 300042 2)tianjin surveying and mapping bureau; tianjin\ 300381 3)no.1 crustal deformation monitoring center; csb; tianjin\ 300180
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IAG2001 SCIENCE CONFERENCE AND LATEST PROGRESS OF GEODESY
hu jianguo\+\{1)\}; yang yuanxi\+\{2)\}; li jiancheng\+\{3)\} and li jinling\+\{4)\}\; 1)chinese academy of surveying and mapping; beijing\ 100039 2)xi an research institute of surveying and mapping; xi an\ 710054 3)wuhan university; wuhan\ 430079 4)shanghai astronomical observatory; cas; shanghai\ 200030
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