1. Stanley, D.O. et al. "Conceptual Design of a Next-Generation, Fully Reusable Manned Launch System", AIAA-91-0537,AIAA 29thAerospace Sciences Meeting,Reno,NV,USA,January1991
2. Freeman, D.G., Wilhite, A., Taley, T. "Advanced Manned Launch System Study Status", IAF 91-193,42ndCongress of the International Astronautical Federation, Montreal, Canada, October, 1991
3. Chase, R.L., McKinney, L.E., Froning, H.D. "A Two Stage-to-Orbit High Staging Mach Number Design Concept", Paper 200-01-5605,SAE/AIAA World Aviation Congress and Exposition, San Diego, CA, USA, October, 2000
4. Chase, R.L. "Design Evolution of a Combined Cycle Air-Breathing Powered SSTO Design Concept", AIAA-95-6010,6thInternational Aerospace Planes Conference,Chattanooga,TN,USA,April,1995
5. Froning, H.D., McKinney, L.E., Chase, R.L. "Aerospace Plane Trajectory Optimization for Sub-Orbital Boost Glide Flight, AIAA 96-4519, 7thInternational Space Planes and Hypersonic Systems and Technologies Conference, Norfolk, VA, USA, November,1996