1. G. Russo, Flight test experiments foreseen for USV, in: VKI Lecture Series on Flight Experiments for Hypersonic Vehicle Development, Brussels, Belgium, 24–28 October 2005.
2. G. Russo, PRORA-USV: The first dropped transonic flight test, in: Proceedings of the First CEAS European Air and Space Conference, Berlin, 10–13 September 2007.
3. G. Russo, et al., USV program: DTFT in flight experiments, in: Proceedings of the 18th ESA Symposium on European Rocket and Balloon Programmes and Related Research, Visby, Sweden, 3–7 June 2007.
4. B.R. Cobleigh, Development of the X-33 Aerodynamic Uncertainty Model, NASA/TP-1998-206544, 1998.
5. P.P. De Matteis, F. Corraro, R. Sabatano, G. Russo, DTFT-1: the first flight of the automatically controlled unmanned space vehicle, in: Proceedings of the First International Workshop on Autonomous Navigation and Artificial Intelligence: state-of-the-art and advances, Pratica di Mare, Italy, July 2007.