1. Federal Aviation Administration (2012) NextGen Briefing. Retrieved online November 2012 from
http://www.faa.gov/air_traffic/briefing/
2. Federal Aviation Administration (2012) FAA Aerospace Forecasts Fiscal Years 2012–2032
3. Joint Planning and Development Office (2010) Concept of Operations for the Next Generation Air Transportation System [Draft version 3.2]
4. Joint Planning and Development Office (2011) Targeted NextGen Capabilities for 2025
5. Joint Planning and Development Office (2011) JPDO Trajectory-Based Operations (TBO) Study Team Report