1. Principles of Forecasting: A Handbook for Researchers and Practitioners;Armstrong,2001
2. Participants’ response to the Delphi method: an attitudinal perspective;Bardecki;Technological Forecasting and Social Change,1984
3. The Transit Metropolis––A Global Inquiry;Cervero,1998
4. Essence of backcasting;Dreborg;Futures,1996
5. Towards Sustainable Transport Planning: A Comparison Between Britain and the Netherlands;Haq,1997