Influence of various troposphere modelling and estimation techniques on precise position estimation of permanent GPS arrays by Parker, Aslam

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The estimation of precipitable water vapour from GPS measurements in South Africa by Wonnacott, R T

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Sensing atmospheric water vapour using the global positioning system by Combrink, Adriaan Zacharias Albertus

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Splines and local approximation of the earth's gravity field by Van Gysen, Hermanus Gerhardus

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Free adjustment of a triangulation net by Jackson, Jonathan

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Antenna axis offset and intersection determination using GPS by Combrinck, Willem Ludwig

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Investigation of refraction effects for small GPS networks by Christiaans, Johan

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High precision GPS data processing for the survey of South African tide gauges by Zimba, Robert

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The use of spectral methods in Quasi-geoid modelling by Amod, Ameer

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