1. Centre for Sustainable Arctic Tourism, Tourism & Northern Studies, UiT The Arctic University of Norway, Alta, Norway
2. Faculty of Sport Sciences, Waseda University, 3-4-1 Higashi-fushimi, Nishi-tokyo, Tokyo, 202-0021, Japan
3. School of Business and Economics, UiT The Arctic University of Norway, Breivika, 9019 Tromsø, Norway
4. University College of South East Norway, Campus Vestfold, 3603 Kongsberg, Norway