1. Department of Engineering and Architecture University of Parma Parco Area delle Scienze 181/A 43124 Parma Italy
2. Department of Civil Engineering University of Calabria via Pietro Bucci 87036 Arcavacata di Rende (CS) Italy
3. Department of Engineering University of Naples Parthenope Centro Direzionale Isola C4 80143 Napoli Italy
4. DICeM Università di Cassino e del Lazio Meridionale Via G. Di Biasio, 43 03043 Cassino (FR) Italy