1. IERS Annual Report 2000, Ed. by W. Dick and B. Richter, International Earth Rotation and Reference Systems Service, Central Bureau (BKG, Frankfurt am Mein, 2001).
2. IERS Annual Report 2002, Ed. by W. Dick and B. Richter, International Earth Rotation and Reference Systems Service, Central Bureau (BKG, Frankfurt am Mein, 2003).
3. International VLBI Survice for Geodesy and Astrometry: Observing Programs, http://ivs.nict.go.jp/mirror/program/ .
4. The NCEP/NCAR Reanalysis Project at the NOAA/ESRL Physical Sciences Division, http://www.esrl.noaa.gov/psd/data/reanalysis/reanalysis.shtml .
5. C. Audoin and B. Guinot, The Measurement of Time: Time, Frequency and the Atomic Clock (Cambridge Univ., Cambridge, 2001; Tekhnosfera, Moscow, 2002).