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Railway Investigation and Surveying
1672-7479
2006 Issue 1
Exploration for the Supervision of the Railway Engineering Geological Survey
Li De;Li Gaoming;Gao Wei
..............page:59-61
A Trial Research on the Pseudo- Range Differential Positioning Technique of GPS
Yang Yongping;Feng Liqing;Zhang Hui
..............page:14-17
An Improved Method of the Horizontal Displacement Monitoring
Gu Chuan;Pan Guorong
..............page:8-10