1. Atkinson, T., Donohoe, L., Evans, A., Gorst, A., Kilner, A., Kirwan, B., Lamoureux, T., MacKendrick, H., 1997. Human factors guidelines for air traffic management systems. NATS R&D Report 9739, ATMDC, August, pp. 194
2. Aviation Week and Space Technology, 1998, Feb 2. Answers to the Gridlock, pp. 42–62.
3. A systems view of air traffic control;Benel,1998
4. Bentley, J.W., Young, B.C., Atkinson, T.R., MacKendrick, H., 1998. Clacton re-organisation and TC East development simulation. ATMDC Memorandum 9809, National Air Traffic Services, Air Traffic Management Development Centre, Bournemouth Airport, Dorset BH23 6DF, May.
5. Aviation Automation: The Search for a Human-centred Approach;Billings,1996