1. Department of Geology; University of Ljubljana, Faculty of Natural Sciences and Engineering; Privoz 11 1000 Ljubljana Slovenia
2. Restoration Centre; Institute for the Protection of Cultural Heritage of Slovenia; Poljanska cesta 40 1000 Ljubljana Slovenia
3. Centre for Preventive Archaeology; Institute for the Protection of Cultural Heritage of Slovenia; Poljanska cesta 40 1000 Ljubljana Slovenia
4. Department of Conservation and Restoration; National Museum of Slovenia; Prešernova 20 1000 Ljubljana Slovenia
5. Department of Restoration; University of Ljubljana, Academy of Fine Arts and Design; Erjavčeva 23 1000 Ljubljana Slovenia
6. Museum and Galleries of Ljubljana; Gosposka 15 1000 Ljubljana Slovenia
7. Slovenian National Building and Civil Engineering Institute; Dimičeva 12 1000 Ljubljana Slovenia