1. National Academy of Engineering. Engineering Research and America's Future: Meeting the Challenges of a Global Economy, The National Academies Press, Washington, DC, 2005.
2. National Aeronautics and Space Administration, The Vision for Space Exploration, Washington, DC, USA, 2004.
3. Program executive summary, Mars Gravity PDR Documentation, June 2007, available upon request.
4. Science development and integration plan, Mars Gravity PDR Documentation, June 2007, available upon request.
5. Payload element functional description and requirements, MG PDR Documentation, June 2007, available upon Request.