1. Department of Geography, DePaul University, Chicago, IL, USA;
2. Department of Geography, State University of New York at Buffalo (UB), Buffalo, NY, USA;
3. Department of Geography, The Ohio State University, Columbus, OH, USA;
4. Department of Geography and Environmental Studies, Wilfrid Laurier University, Waterloo, ON, Canada;
5. Department of Geography, Ohio University, Athens, OH, USA