1. Beutler, G. The Accomplishments of the IGS and their implications for the future of geodesy, in: Meindl, M. (Ed.), Celebrating a Decade of the International GPS Service-Workshop and Symposium 2004, Astronomical Institute, University of Bern, 2005. Available from: .
2. Dow, J.M., Gurtner, W., Schlueter, W. The IGGOS viewed from the space geodetic services, in: Proceedings of the IGGOS Symposium, IUGG General Assembly, Sapporo, Japan, July 2003, Elsevier, 2005.
3. IGS website. See IGS Products http://igscb.jpl.nasa.gov/components/prods.html;
4. IGS Strategic Plan 2002–2007. http://igscb.jpl.nasa.gov/resource/pubs/IGS_sp.pdf;
5. Bern Workshop http://igscb.jpl.nasa.gov, 2004.