Valera, P.

• Bulletin of the Geological Society of Greece Vol. 43 No. 5 (2010): 12th International Conference of the G.S.G. - Industrial Minerals and Rocks
  VOLCANIC – SEDIMENTARY METAL DEPOSITION IN PALEOMARGIN ENVIRONMENT: A “ PROTORE ” OCCURRENCE IN CENTRAL SARDINIA (ITALY)
  Abstract  PDF
• Bulletin of the Geological Society of Greece Vol. 43 No. 5 (2010): 12th International Conference of the G.S.G. - Petrology and Mineralogy
  MANGANESE MINERALISATIONS AT THE BASE OF MIOCENE SEDIMENTS IN NORTHERN SARDINIA (ITALY)
  Abstract  PDF