1. d’Atri, A., Barale, L., Bertok, C., Magagna, A., Martire, L., Piana, F., et al. (2012). Pages of the earth history book recorded in the successions of the Marguareis area (PROGEOPiemonte Project). Geologia dell’Ambiente,2012(3), 152–153.
2. de Mulder, E. F. J., Nield, T., & Edward Derbyshire, E. (2006). The international year of planet earth (2007–2009): Earth sciences for society. Episodes 29(2), 82–86.
3. Digne Declaration (1991) Digne declaration. Declaration of the rights of the memory of the earth. English translation used by ProGEO.
http://www.progeo.se/digne.html
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4. Ferrero, E., Giardino, M., Lozar, F., Giordano, E., Belluso, E., & Perotti, L. (2012). Geodiversity action plans for the enhancement of geoheritage in the Piemonte region (north-western Italy). Annals of Geophysics,55(3), 487–495.
5. Giardino, M. for the PROGEO—Piemonte research team (2012). A multidisciplinary research project for developing a PROactive management of GEOlogical heritage in the PIEMONTE region. Geologia dell’Ambiente,3, 196–197.