1. Ashby, N. and Allan, D.W.: 1979, Radio Science 14, 649.
2. Atkinson, R.d’E.: 1973, Astron. J. 78, 147.
3. Atkinson, R.d’E.: 1975, Monthly Notices Roy. Astron. Soc. 71, 381.
4. Atkinson, R.d’E.: 1976, ‘On the Earth’s Axes of Rotation and Figure’, pres. at XVI General Assembly of IUGG, Grenoble.
5. Barbieri, C. and Bernacca, P.L.(eds.): 1979, European Satellite Astrometry, Ist. di Astronomia, Univ. di Padova, Italy.