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gerald a soffen
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The human quest in space
Goddard Memorial Symposium (24th 1986 Greenbelt, Md.), Gerald L. Burdett, Gerald A. Soffen · Published for the American Astronautical Society by Univelt
295 sayfa · 1987
Congresses / Manned space flight / Business/Economics
Biological life support technologies
Mark Nelson, Gerald A. Soffen · National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division
110 sayfa · 1990
Life support systems (Space environment) / Congresses / Biosphere 2 (Project)