Umberto Mecca. INDIRECT GREEN FACADE SYSTEMS: A PROPOSAL OF A GLOBAL PERFORMANCE INDICATOR FOR IN/OUT EVALUATION. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings19th, Nano, Bio, Green and Space: Technologies for Sustainable Future, 2019, pp. 467-474. https://doi.org/10.5593/sgem2019v/6.3/s10.060