1. IERS Annual Reports, 2000/2002. Frankfurt am Mein: BKG, 2001/2003; IGN ( ftp://igs.ensg.ign.fr ); VLBI Observing programs: CONT’94, CONT’05, CONT’08 ( http://ivs.nict.go.jp/mirror/program/ ).
2. K. Oduan and B. Gino, Measurement of Tine. Fundamentals of GPS (Tekhnosfera, Moscow, 2002) [in Russian].
3. U. Smart, Celestial Mechanics (Mir, Moscow, 1965) [in Russian].
4. V. S. Gubanov, Generalized Least-Square Method. Theory and Application in Astrometry (Nauka, St. Petersburg, 1997) [in Russian].
5. L. D. Akulenko, S. A. Kumakshev, Yu. G. Markov, and L. V. Rykhlova, Astron. Zh. 84(5), 471 (2007).