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2. HoekstraJ. “Designing for Safety, Free Flight Air Traffic Management Concept,” Ph.D. Thesis, Delft Univ. of Technology, Delft, The Netherlands, 2001.
3. KrozelJ. “Free Flight Research Issues and Literature Search,” NASA Contract NAS2-98005, TR 00RTO43-02, 2000.
4. “DO-242a, Minimum Aviation System Performance Standards for ADS-B,” Radio Technical Commission for Aeronautics DO-242A, Washington, D.C. June 2002.
5. Human factors evaluations of Free Flight