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    Space tethers and space elevators

    Pelt, Michel van | SLUB | 2009
    Verlag: Copernicus Books [u.a.] , New York, NY

    Space tethers and space elevators

    Pelt, Michel | TIBKAT | 2009
    Verlag: Copernicus Books [u.a.] , New York, NY

    Return to the moon : exploration, enterprise, and energy in the human settlement of space

    Schmitt, Harrison / Armstrong, Neil | SLUB | 2006
    Verlag: Copernicus Books [u.a.] , New York, NY