1. 1) FAA: NextGen Implementation Plan, 2013.
2. 2) Eurocontrol: The Roadmap For Sustainable Air Traffic Management, European ATM Master Plan, 2nd edition, 2012.
3. 3) Study Group for the Future Air Traffic Systems: CARATS: Collaborative Actions for Renovation of Air Traffic Systems, Long-Term Vision for the Future Air Traffic Systems, 2010.
4. 4) Japan Meteorological Business Support Center Online Data Service, http://www.jmbsc.or.jp/hp/online/f-online0a.html
5. 5) Eurocontrol Experiment Center: User Manual for the Base of Aircraft Data (BADA), Rev. 3.11, EEC Technical/Scientific Report, No.13/04/16-01, 2013.