1. Earth-Moon Halo Orbit-Gateway or Tollbooth?;david;AAS,2019
2. The NASA Development and Advanced Capability for Exploration Missions;benjamin;2021 IEEE Aerospace Conference,2021
3. Inspiration Mars;dennis;Feasibility Analysis For a Manned Mars Free-Return Mission in 2008,2013
4. Entry System Options for Human Return from the Moon and Mars
5. Crewed Lunar Missions and Architectures Enabled by the NASA Space Launch System;benjamin;2020 IEEE Aerospace Conference,2020