1. Department of Town and Regional Planning, University of Sheffield, Sheffield S10 2TN, England
2. Unit of Geography and European Culture, Hellenic Open University, 11 - 13 Ravine Street, 11521 Athens, Greece
3. Department of Sociology, University of Milan “Bicocca”, Building U7, Via Bicocca degli Arcimboldi 8, 20126 Milan, Italy
4. University of Applied Sciences Berlin FB III, Luxemburger-Strasse 10, 13353 Berlin, Germany