1. NASA's strategic analysis cycle 2021 (SAC21) human Mars architecture;Rucker,2022
2. Nuclear electric propulsion/chemical propulsion hybrid human mars exploration campaign: first mars surface mission;Kokan,2021
3. Concept for 2033 crewed Mars orbital mission with venus flyby;Price;J. Spacecraft Rockets,2023
4. Making life multi-planetary;Musk;New Space,2018
5. Mission architecture using the SpaceX starship vehicle to enable a sustained human presence on Mars;Heldmann;New Space,2022