1. Full Professor, Engineering Dept., Univ. of Sannio, Benevento, Italy.
2. Assistant Professor, Engineering Dept., Univ. of Sannio, Benevento, Italy.
3. Assistant Professor, Dept. of Structural Analysis and Design, Univ. of Naples Federico II, Italy.
4. Full Professor, Dept. of Structural Analysis and Design, Univ. of Naples Federico II, Italy.