1. S. Ames, Community Visioning: Planning for the Future in Oregon's Local Communities. American Planning Association Conference, San Diego, Available online at www.asu.edu/caed/proceedings97/ames.html, 1997, accessed 27 April, 2004.
2. Group model building: adding more science to the craft;Andersen;System Dynamics Review,1997
3. Action Science;Argyris,1985
4. Organizational Learning: A Theory of Action;Argyris,1978
5. A ladder of citizen participation;Arnstein;Journal of the American Planning Association,1969