1. Department of Urban and Regional Planning; Istanbul Technical University; Taskisla 34437 Taksim, Istanbul Turkey
2. Faculty of Geography; Adam Mickiewicz University; Ul. Bogumila Krygowskiego 10, 61-680 Poznan Poland
3. Schar School of Policy and Government; George Mason University; 3351 Fairfax Drive, MS 3B1, Arlington, Virginia 22201 USA