Acknowledgements
We thank the reviewers who generously participated in reviewing process of the manuscripts submitted to this special issue: Deniz Kucukusta, The Hong Kong Polytechnic University, Hong Kong (SAR); Pedro Quelhas Brito, University of Porto, Portugal; Alan Fyall, University of Central Florida, USA; Michael Bosnjak, Free University of Bozen, Italy; Carlos Barros, Technical University of Lisbon, Portugal; Patricia Valle, University of Algarve, Portugal; Rob Law, The Hong Kong Polytechnic University, Hong Kong (SAR); Andy Lee, The University of Queensland, Australia; Rosanna Leung, Caritas Institute of Higher Education, Hong Kong (SAR); Ada Lo, The Hong Kong Polytechnic University, Hong Kong (SAR); Miguel Moital, Bournemouth University, UK.