1. Department of Tourism, Heritage and Culture, REMIT, Portucalense University, Porto, Portugal; Universidade Portucalense Infante D. Henrique, Porto, Portugal
2. Institute of Social Sciences, Department of Geography, Lab2PT, University of Minho, Guimarães
3. Department of Tourism, Heritage and Culture, CIAUD, Portucalense University, Porto, Portugal; Universidade Portucalense Infante D. Henrique, Porto, Portugal
4. SUNY Potsdam, State University of New York, Potsdam, NY, USA
5. Jefferson Community College, Watertown, NY, USA