1. Department of Geology, University of Patras, GR26504 Patras, Greece
2. Department of Educational Science and Early Childhood Education, University of Patras, GR26504 Patras, Greece
3. Department of Civil Engineering, University of Patras, GR26504 Patras, Greece
4. Centre for Research & Technology, Greece (CERTH), GR15125 Thessaloniki, Greece