1. Associate Professor, Dept. of Innovation Engineering, Univ. of Lecce, Via per Monteroni, 73100 Lecce, Italy.
2. Assistant Professor, Dept. of Innovation Engineering, Univ. of Lecce, Via per Monteroni, 73100 Lecce, Italy.
3. Ph.D. Candidate, Dept. of Innovation Engineering, Univ. of Lecce, Via per Monteroni, 73100 Lecce, Italy.