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{{sources|date=March 2021}}
{{short description|Proposed concepts for the human colonization of trans-Neptunian objects}}
{{Use American English|date=November 2020}}
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*David G. Stephenson, "Comets and Interstellar Travel", in Journal of the British Interplanetary Society, 36, 1983, pp. 210–214.
{{Use American English|date=January 2014}}
{{Space colonization}}
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