Putnam, Z.; Bairstow, S.; Barton, G.; and Braun, R.; "Improving Lunar Return Entry Footprints Using Enhanced Skip Trajectory Guidance," AIAA 2006-7438, AIAA Space 2006 Conference and Exposition, San Jose, CA, September 2006.

Christian, J.; Manyapu, K.; Wells, G.; Lafleur, J.; Verges, A.; and Braun, R.; "Sizing of an Entry, Descent, and Landing System for Human Mars Exploration," AIAA 2006-7427, AIAA Space 2006 Conference and Exposition, San Jose, CA, September 2006.

Young, D. and Wilhite, A.; "A Method for Allocating Reliability and Cost in a Lunar Exploration Architecture," IAC-06-D1.3.09, 57th International Astronautical Congress, Valencia, Spain, October 2006.

Tanner, C.; Young, J.; Thompson, R.; and Wilhite, A.; "On-Orbit Propellant Re-supply Options for Mars Exploration Architectures," IAC-06-D1.1.01, 57th International Astronautical Congress, Valencia, Spain, October 2006.

Krevor, Z. and Wilhite, A.; "Cost of Safety for Space Transportation," IAC-06-D1.1.08, 57th International Astronautical Congress, Valencia, Spain, October 2006.

Kokan, T. and Olds, J.; "Characterizing High-Energy-Density Propellants for Space Propulsion Applications," IAC-06-C4.P.10, 57th International Astronautical Congress, Valencia, Spain, October 2006.