1. Future technology and aircraft types. Stanford University Website (based on “Reinventing the Airplane: New Concepts for Flight in the 21st Century” presentation by Ilan Kroo)
2. Vision 2020: Strategic Research Agenda, vol. 1, October 2002
3. Oblique flying wings: An introduction and white paper, June 2005. Desktop Aeronautics Website
4. Beccasio, N., Tesconi, M., Frediani, A.: Liquid hydrogen propelled PrandtlPlane configuration: a preliminary study. In: Buttazzo, G., Frediani, A. (eds.) Variational Analysis and Aerospace Engineering II: Mathematical Challenges for Aerospace Design. Springer, Berlin (2012)
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