1. ACARE, (2010). Beyond vision 2020 (Towards 2050). The Advisory Council for Aeronautic Research in Europe, Directorate-General for Research Aeronautics and Transport. Brussels, Belgium: European Commission.
2. Airbus, (2012). Delivering the future: Global market forecast 2012–2030. Blagnac, Cedex, France: AIRBUS S.A.S.
3. Anderson, J. E. (2000). A review of the state of the art of personal rapid transit. Journal of Advanced Transportation,
34(1), 3–29.
4. Anderson, J. E. (2005). “The Future of High-Capacity PRT”, Advanced Automated Transit Systems Conference, November 7–8. Italy: Bologna.
5. Anderson, J. E. (2007). High-capacity personal rapid transit: Rationale, attributes, status, economics, benefits, and courses of study for engineers and planners. Minnesota, US: PRT International LLC.