Anzidei, M., Baldi, P., Galvani, A., Pesci, A., Hunstad, I. and Boschi, E. 1999. Coseismic displacement of the 27th September 1997 Umbria - Marche (Italy) earthquakes detected by GPS: campaigns and data. Annals of Geophysics. 42, 4 (Nov. 1999). DOI:https://doi.org/10.4401/ag-3744.