1. Postdoctoral Fellow, Dept. of Engineering, Univ. of Ferrara, Via Saragat 1, 44122 Ferrara, Italy (corresponding author).
2. Associate Professor, Dept. of Engineering, Univ. of Ferrara, Via Saragat 1, 44122 Ferrara, Italy.
3. Professor, Dept. of Architecture, Univ. of Ferrara, Via Quartieri 8, 44121 Ferrara, Italy.