1. Department of Civil, Architectural and Environmental Engineering, University of Naples Federico II, Naples, Italy
2. Department of Civil and Mechanical Engineering, University of Cassino and the Southern Lazio, Cassino, Italy
3. Telematic University Pegaso, Naples, Italy
4. Laboratoire Géomatériaux et Environnement (EA 4508), Université Paris-Est (UPEM), Marne-la-Vallée, France
5. Department of Environmental Engineering and Water Technology, UNESCO-IHE Institute for Water Education, Delft, Netherlands