1. Department of Industrial Engineering, Instituto Politécnico de Castelo Branco, Av. do Empresário, 6000-767 Castelo Branco, Portugal
2. Campus de Gualtar, ALGORITMI Research Unit, University of Minho, 4710-057 Braga, Portugal
3. Chair of Factory Planning and Intralogistics, Chemnitz University of Technology, Erfenschlager Str. 73, 09125 Chemnitz, Germany
4. Department of Management, Economics and Industrial Engineering, Politecnico di Milano, Via Lambruschini 4/b, 20156 Milano, Italy