Field Trip Guide to Val DOrcia.
Bazzoffi, P., Calzolari, C., Costantini, E.A.C., Pellegrini, S., Torri, D., Borselli, L., Del Sette, M., Salvador Sanchis, P., Ungaro, F., Yanez, M., Busoni, E., Monaci, F., 2003, Field Trip Guide to Val DOrcia.,
OECD Expert Meeting on Soil Erosion and Soil Biodiversity Indicators, Rome, 2003,
URL: http://www.cnr.it/prodotto/i/88893
Data from https://intranet.cnr.it/people/