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Effect of Instability of the Earth and  Celestial Coordinate System on Earth Orientation
      Parameters.
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      Translated from Astronomicheskii Zhurnal. v. 77, N2, pp.144-160,
      2000


Mikhail Sazhin,
Quasi - inertiality of the celestial reference frame.
Gravitation and Cosmology, v.6, pp.214 - 220 (2000).