Elandt, Katharina, Klaus Hellemann, Manuela Rath, Karl M. Hellemann, Daniela Pinna, and Salvatore Lorusso. “Preventive Methods to Reduce the Deterioration of Monuments and Outdoor Art by Microbe Burden of the Solid-Micro-Dust-Fraction”. Conservation Science in Cultural Heritage 3, no. 1 (January 1, 2003): 215–217. Accessed May 7, 2024. https://conservation-science.unibo.it/article/view/565.