1. Civil Engineer, Dept. of Civil Engineering, Geotechnical Engineering Laboratory, Univ. of Patras, Patras GR-26504, Greece. ORCID: .
2. Associate Professor, Dept. of Civil Engineering, Soil Mechanics and Foundation Engineering Laboratory, Democritus Univ. of Thrace, University Campus—Kimmeria, Xanthi GR-67100, Greece (corresponding author). ORCID: .
3. Professor Emeritus, Dept. of Civil Engineering, Geotechnical Engineering Laboratory, Univ. of Patras, Patras GR-26504, Greece.