1. Alves C. J. P. and Mora-Camino, F. 1992. Regulation des Flux de Trafic Aerien Perspectives pour le Bresil. VI World Conference on Transport Research, France.
2. Optimization Models and Techniques to Improve Air Traffic Management;Bianco;AGARD,1990
3. Bielli, M. 1986. Flow Control Modeling In ATC System. Istituto di Analisi dei Sistemi ed Infomatica del C.N.R., R. 149, Italy.
4. Air Traffic Flow Management;Dieben;NAVAIRE, Official Journal of the IFATSEA,1990
5. Dippe, D. 1989. 4D-Planner - A Ground Based Planning System for Time Accurate Approach Guidance. DLR - Mitt, 89-23.