1. Altamimi Z, Sillard P, Boucher C (2002) ITRF2000: A new release of the International Terrestrial Reference Frame for earth science applications. J Geophys Res 107(B7), 2214, doi:10.1029/2001JB000561
2. Angermann D, Drewes H, Krügel M, Meisel B, Gerstl M, Kelm R, Müller H, Seemüller W, Tesmer V (2004) ITRS Combination Center at DGFI: A terrestrial reference frame realization 2003. Deutsche Geodätische Kommission, Reihe B, Heft Nr. 313
3. Angermann D, Drewes H, Gerstl M, Kelm R, Krügel M, Meisel B (2005a) ITRF combination-status and recommendations for the future, Sanso F (Ed): A Window on the Future of Geodesy, IAG Symposia, Vol. 128, Springer
4. Angermann D, Krügel M, Meisel B, Müller H, Tesmer V (2005b) Time evolution of the terrestrial reference frame, Sanso F (Ed): A Window on the Future of Geodesy, IAG Symposia, Vol. 128, Springer
5. Boucher C, Altamimi Z (1990) Evaluation of the realizations of the Terrestrial Reference System done by the BIH and IERS (1984–1988). IERS Technical Note No. 4