1. Department of Chemistry University of Bari “Aldo Moro” Bari Italy
2. Department of Biological, Geological and Environmental Sciences University of Catania Catania Italy
3. Interdepartmental Centre “Research Laboratory for the Diagnostics of Cultural Heritage” University of Bari “Aldo Moro” Bari Italy
4. Department of Earth and Geoenvironmental Sciences University of Bari “Aldo Moro” Bari Italy