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1
Fast interplanetary missions with low-thrust propulsion systems /
Published 1961Subjects:Government Document Book -
2
Strategies for the sustained human exploration of Mars
Published 2006Subjects: “…Space flight to Mars Planning.…”
Online Access
Thesis Electronic eBook -
3
Use of extraterrestrial resources for human space missions to Moon or Mars /
Published 2018Subjects: Full Text (via Springer)
eBook