1. FAA, "Long Range Aerospace Forecasts Fiscal Years 2015, 2020, 2025, and 2030," FAA APO-03-3 , URL: http://api.hq.faa.gov/Forecast03/long03.pdf ,2003
2. JPDO,2006NextGenerationAirTransportation System, URL: http://www.jpdo.aero/factsheet.html
3. JPDO, 2006 Concept of Operations for the Next Generation Air Transportation System, Draft version 0.2, July24,2006.
4. SESAR Consortium, Eurocontrol 2006 Air Transport Framework, The Performance Targets D2, URL: http://www.eurocontrol.int/sesar/gallery/content/public/docs/DLM-0607-001-02-00a.pdf