1. Davis, T.J., Isaacson, D.R., Robinson III., J.E., Braven, W. den, Lee, K.K., Sanford, B., 1997. Operational test results of the passive final approach spacing tool. In: Proceedings of the IFAC eighth symposium on transportation systems 97, China.
2. Federal Aviation Administration, 1987. Airport Capacity Enhancement Plan. DOT/FAA/CP-87-3, US Department of Transportation, Washington, DC.
3. Airline delay: 1976–1986;Geisinger,1989
4. Hansen, M., Tsao, J., Huang, A., Wei, W., 1998. Empirical analysis of airport capacity enhancement impacts: a case study of DFW airport. NEXTOR Research Report RR-98-17, Berkeley, California.
5. Morrison, S., Winston, C., 1989. Enhancing the performance of the deregulated air transportation system. Brookings Papers: Microeconomics, Brookings Institute.