1. Laser-induced air spike for advanced transatmospheric vehicles
2. 4Head, S. R. "Theoretical Analysis of the Hypersonic `Air-Spike' Inlet," M.S. Thesis,Dept. of Mechanical Engineering, Aeronautical Engineering, and Mechanics, Rensselaer Polytechnic Inst., Troy, NY,Aug. 1994.
3. 5Seo, J. "Analysis of Aerodynamics Properties Inside Airspike of Microwave Propelled Transatmospheric Vehicle," M.S. Thesis,Dept. of Mechanical Engineering, Aeronautical Engineering, and Mechanics, Rensselaer Polytechnic Inst., Troy, NY,Aug. 1994.