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(B10):2214. DOI 10.1029/2001JB000561
2. Altamimi Z (2003) ITRF and co-location sites. In: Proceedings of the IERS workshop on site co-location, IERS technical note no. 33, Matera, Italy. http://www.iers.org/documents/ publications/tn/tn33/tn33_008.pdf
3. BIH (1988) Annual report for 1987. Observatoire de Paris, France
4. Boucher C, Fagard H (1991) DORIS stations coordinates. In: Proceedings of the international DORIS orbit computation workshop, Toulouse, France, October
5. Boucher C, Cazenave A, Dufour JP, Essaïfi N, Feissel M, Gambis D, Willis P (1994) Proposal to include DORIS as a new technique in IERS. Rapport technique GRGS no. 12. Groupe de Recherche de Géodésie Spatiale, France