Reference Coordinate Systems for Earth Dynamics Proceedings of the 56th Colloquium of the International Astronomical Union Held in Warsaw, Poland, September 8–12, 1980 | EKB DL
Reference Coordinate Systems for Earth Dynamics Proceedings of the 56th Colloquium of the International Astronomical Union Held in Warsaw, Poland, September 8–12, 1980
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Proceedings of the 56th Colloquium of the International Astronomical Union held in Warsaw, Poland, September 8-12, 1980
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