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“Proper Motions” of Extragalactic Sources and the Precession Constant
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- Journal:
- Symposium - International Astronomical Union / Volume 156 / 1993
- Published online by Cambridge University Press:
- 07 August 2017, pp. 387-390
- Print publication:
- 1993
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- Article
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Influence of Systematic Differences of FK4 on Determining Earth Orientation Parameters
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- Journal:
- International Astronomical Union Colloquium / Volume 127 / 1991
- Published online by Cambridge University Press:
- 12 April 2016, pp. 280-283
- Print publication:
- 1991
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- Article
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