1. Young, J.C., Perez, L.F., Romere, P.O. and Kanipe, D.B., “Space Shuttle Entry Aerodynamic Comparisons of Flight 1 with Preflight Predictions,” AIAA Paper 81-2476, Nov. 1981.
2. J.R. Maus, B.J. Griffith, and K.Y. Szema, “Hypersonic Mach number and real gas effects on Space Shuttle Orbiter Aerodynamics,” Journal of Spacecraft and Rockets, VOL. 21, NO. 2, 1984.
3. Becker, J., Boston, R., Geiger, C., Hallion R., Houston, R., and Vitelli, J., “The Hypersonic Revolution. Case Studies in the History of Hypersonic Technology. Volume I. From Max Valier to Project PRIME (1924-1967)”, ADA441127, 1998.
4. “BOR-4,” http://en.wikipedia.org/wiki/BOR-4.
5. Masao, S., and Masotaka, Y., “Overview of the HYFLEX Project,” AIAA Paper 96-4524, 1996.