1. Adams,J.,Hampsten,K.,Hickman,R."ARES:AffordableREusableSpacelift" AIAA-2005-6682.
2. "ReusableBoosterSystem(RBS)Pathfinder" SolicitationNumber:BAA-10-04-PKV. www.fbo.gov
3. Committee for the Reusable Booster System: Reviewand Assessment, Aeronautics and Space EngineeringBoard, Division on Engineering and Physical Sciences, National Research Council. Reusable Booster System: Review and Assessment.24Dec 2012.