1. Department of Management and Innovation Systems, University of Salerno, Fisciano (SA) 84084, Italy;
2. Department of Management, Sapienza University of Rome, Rome 00161, Italy;
3. Department of Pharmacy, University of Salerno, Fisciano (SA) 84084, Italy;
4. Faculty of Informatics, Masaryk University, Brno, 60200 Czech Republic