Sharp, Gunter P.; Anderson, Timothy R. (Timothy Roy), 1967-(Portland International Conference on Management of Engineering & Technology (PICMET), 1997)
Perkowski, Mateusz(Institute of Portland Metropolitan Studies, Nohad A. Toulan School of Urban Studies and Planning, College of Urban and Public Affairs, Portland State University, 2006)
Motley, John(Institute of Portland Metropolitan Studies, Nohad A. Toulan School of Urban Studies and Planning, College of Urban and Public Affairs, Portland State University, 2006)