1. Tourism Business Administration (DTE), Patra, Greece
2. Department of Business Administration, University of Thessaly, Larissa, Geopolis, Greece
3. Tourism Management (DIT), Hellenic Open University, Patra, Greece
4. Department of Business Administration and Tourism, Hellenic Mediterranean University, Heraklion, Greece
5. University of Nicosia, Nicosia, Cyprus
6. Department of Economics and Management Engineering, University of the Aegean, Chios, Greece