1. Laboratory of Engineering Geology and Hydrogeology, School of Mining and Metallurgical Engineering, National Technical University of Athens, 9, Heroon Polytechniou Str., 157 80 Athens, Greece
2. Department of Civil and Environmental Engineering, School of Engineering, University of Cyprus, 75 Kallipoleos Street, P.O. Box 20537, 1678 Nicosia, Cyprus
3. Department of Geography, Harokopio University of Athens, 70, El. Venizelou Str., 17671 Athens, Greece