1. D.F. Bender, Ion drive multi-asteroid rendezvous trajectories, Paper No. AAS 77-3, presented at AAS/AIAA Astrodynamics Conference, Jackson, Wyoming, 7–9 September 1977.
2. C.G. Sauer Jr., Planetary mission performance for small solar electric propulsion spacecraft, Paper No. AAS 93-561, presented at AAS/AIAA Astrodynamics Specialist Conference, Victoria, BC, Canada, 16–19 August 1993.
3. C.G. Sauer Jr., C.-W.L. Yen, Planetary mission capability of small low power solar electric propulsion systems, Paper No. IAA-L-0706, presented at IAA International Conference on Low-cost Planetary Missions, 12–15 April 1994.
4. Multiple Asteroid Rendezvous, JPL Advanced Projects Design Team report, T.H. Sweetser study lead, 11/25/96.
5. Asteroid Rendezvous New Technology, JPL Advanced Projects Design Team report, R. Bennett study lead, 5/9/97.