| Author(s): | Fricke, W. |
| Title: | Joint Report of the Working Groups of IAU Com. 4 on Precession, Planetary Ephemerides, Units and Time-Scales |
| Source: | IAU Transactions XVI B, 56 (gemeinsam mit R.L. Duncombe, P.K. Seidelmann, G.A. Wilkins) |
| Year: | 1977 |
| Abstract: | |
| Preprint issued: | |
| Remarks: |
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Letzte Änderung/Updated: 12.10.2001