1. 4Lovell, D. A., Crawford, C. A., Restrick, K. E. "Recent Advances in Air-Vehicle Design Synthesis and Optimisation," Proceedingsof24th InternationalCongressoftheAeronauticalSciences,Yokohama,Japan,August2004.
2. 5Crawford C. A.Simm S. E. "Conceptual Design and Optimisation of Modern Combat Aircraft",Aerodynamic Design and OptimisationofFlightVehiclesinaConcurrentMulti-Disciplinary Environment,NATO RTO Symposium, Ottawa, Canada, 18-21October1999.
3. 6Doherty, J. J., Dean, S. R. H. "MDO-Based Concept Optimisation and the Impact of Technology and Systems Choices," AIAA2007-7806,Belfast2007.