1. CENTIM—Centre for Entrepreneurship, Innovation and SMEs, Bonn-Rhine-Sieg University of Applied Sciences (Campus Rheinbach), 53359 Rheinbach, Germany
2. Faculty of Health and Business Studies, Campus Valjevo, Singidunum University, 14000 Valjevo, Serbia
3. Department of Economics and Business, Neapolis University Pafos, Pafos 8042, Cyprus
4. Faculty of Management, Campus Niš, Metropolitan University, 11000 Belgrade, Serbia