1. RTCATaskForce3,1995,FinalReportoftheRTCATaskForce3:FreeFlightImplementation,WashingtonDC,RTCA,Inc.
2. FederalAviationAdministration,AerospaceForecast2005-2016.
3. Advanced Air Transportation TechnologiesProject Office, 1999,Concept Definition for Distributed Air/Ground TrafficManagement (DAG-TM), Version1.0, NASA.
4. Distributed air-ground traffic management for en route flight operations
5. PetersM.E.,BallinM.G.,SakoskyJ.S."AMulti-OperatorSimulationforInvestigationofDistributedAirTrafficManagement Concepts", AIAA-2002-4596.