1. Department of Engineering and Architecture, University of Parma, Parco Area delle Scienze, 181/A, 43124 Parma, PR, Italy
2. Department of Management, Information and Production Engineering, Università degli Studi di Bergamo, Via Pasubio 7/b, 24044 Dalmine, BG, Italy
3. Facoltà di Ingegneria, Università degli Studi eCampus, Via Isimbardi, 10, 22060 Novedrate, CO, Italy