Rahrig, MaxMaxRahrig0000-0001-6770-3796Drewello, RainerRainerDrewelloLazzeri, A.A.Lazzeri2020-03-052020-03-0520182194-9034https://fis.uni-bamberg.de/handle/uniba/47456engOpto-Technical Monitoring - A Standardized Methodology to Assess the Treatment of Historical Stone Surfacesarticle10.5194/isprs-archives-XLII-2-945-2018