Altamimi, Zuheir; Sillard, Patrick; Boucher, Claude (2002). ”ITRF2000: A new release of the International Terrestrial Reference Frame for earth science applications”. Journal of Geophysical Research: Solid Earth (American Geophysical Union (AGU)) 107 (B10): sid. ETG 2–1–ETG 2–19. doi:10.1029/2001jb000561. ISSN0148-0227.
Altamimi, Zuheir; Sillard, Patrick; Boucher, Claude (2002). ”ITRF2000: A new release of the International Terrestrial Reference Frame for earth science applications”. Journal of Geophysical Research: Solid Earth (American Geophysical Union (AGU)) 107 (B10): sid. ETG 2–1–ETG 2–19. doi:10.1029/2001jb000561. ISSN0148-0227.