1. Altamimi Z, Collilieux X, Métivier L (2011) ITRF2008: an improved solution of the international terrestrial reference frame. J Geod 85:457–473. doi:
10.1007/s00190-011-0444-4
2. Amos C, Audet P, Hammond WC, Burgmann R, Johanson IA, Blewitt G (2014) Uplift and seismicity driven by groundwater depletion in central California. Nature 509:483–486. doi:
10.1038/nature13275
3. Blewitt G, Altamimi Z, Davis JL, Gross R, Kuo C-Y, Lemoine FG, Moore AW, Neilan RE, Plag H-P, Rothacher M, Shum CK, Sideris MG, Schöne T, Tregoning P, Zerbini S (2010) Geodetic observations and global reference frame contributions to understanding sea-level rise and variability. In: Church J, Woodworth PL, Aarup T, Wilson S (eds) Understanding sea-level rise and variability. Wiley-Blackwell, Chichester, pp 256–284. ISBN 978-1-443-3451-7
4. Blewitt G, Kreemer C, Hammond WC, Goldfarb JM (2013) Terrestrial reference frame NA12 for crustal deformation studies in North America. J Geodyn 72:11–24. doi:
10.1016/j.jog.2013.08.004
5. Brunini C, Sánchez L (2013) Geodetic reference frame for the Americas. GIM Int 27(3):26–31, ISSN: 1566–9076