1. 1997 Advanced Vehicle Study at Langley Presented to NASA HQ;Talay,1997
2. Research in Hypersonic Airbreathing Propulsion at the NASA;Kumar,1994
3. Development of Hydrocarbon-Fueled Scramjet Engines: The Hypersonic Technology (HyTech) Program;Powell;AIAA Jo. of Propulsion and Power,2001
4. Beyond Hyper-X;Hunt;ASCE Space'98,1998