Environmental monitoring in the cultural heritage field⋆ L. Lombardo, M. Parvis, S. Corbellini, C. E. Arroyave Posada, E. Angelini and S. Grassini Eur. Phys. J. Plus, 134 8 (2019) 411 Published online: 29 August 2019 DOI: 10.1140/epjp/i2019-12800-2