Institution: | 1. Deutsches Geod?tisches Forschungsinstitut (DGFI) , Munich, Germany;2. Deutsches Geod?tisches Forschungsinstitut (DGFI) , Munich, Germany;3. Czech Technical University in Prague, Faculty of Civil Engineering, Department of Advanced Geodesy , Prague, Czech Republic;4. Astronomical Institute, Academy of Sciences of the Czech Republic , Prague, Czech Republic |