1. Scientific exploration of near-Earth objects via the Orion Crew Exploration Vehicle;Abell;Meteoritics & Planetary Science,2009
2. Augustine, N., et al., 2009. Seeking a Human Spaceflight Program Worthy of a Great Nation. 〈http://legislative.nasa.gov/396093main_HSF_Cmte_FinalReport.pdf〉.
3. Benner, L., 2010. 〈http://echo.jpl.nasa.gov/∼lance/delta_v/delta_v.rendezvous.html〉 (March 2010).
4. Asteroid Rotation Rates—Distributions and Statistics, in Asteroids II;Binzel,1989
5. Dynamical and compositional assessment of near-Earth object mission targets;Binzel;Meteoritics & Planetary Science,2004