1. School of Art & Design, Zhongyuan University of Technology, Zhengzhou 450007, China
2. Department of Business Organization and Marketing, Vigo University, 36310 Vigo, Spain
3. School of Engineering (ISEP), Polytechnic of Porto, Rua Dr. António Bernardino de Almeida 431, 4200-072 Porto, Portugal
4. Design School, Polytechnic Institute Cavado Ave, Campus do IPCA, 4750-810 Barcelos, Portugal