1. Urban Studies Program, Simon Fraser University, 3rd Floor, 515 West Hastings Street, Vancouver, BC V6B 5K3, Canada
2. Jacques Whitfod, 3 Spectacle Lake Drive, Dartmouth, NS B3B 1W8, Canada
3. Department of Human Kinetics, University of British Columbia, 210-6081 University Boulevard, Vancouver, BC V6P 1Z1, Canada