1. Dept. of Civil and Environmental Engineering and Architecture, Univ. of Cagliari, 09123 Cagliari, Italy. ORCID: .
2. Dept. of Civil and Environmental Engineering and Architecture, Univ. of Cagliari, 09123 Cagliari, Italy (corresponding author). ORCID: .
3. School of Rural, Surveying and Geoinformatics Engineering, Dept. of Geography and Regional Planning, National Technical Univ. of Athens, Athens, Greece. ORCID: .