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Biological life support technologies : commercial opportunities : proceedings of a workshop sponsored by the NASA Office of Commercial Programs and held at the Biosphere 2 Project Site near Tucson, Arizona, October 30-November 1, 1989

Gerald Soffen, Editor ; Mark Nelson, Editor | [S.l.] : National Aeronautics and Space Administration | NASA CP | 1990

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The human quest in space : proceedings of a conference held March 20-21, 1986, at the NASA Goddard Space Flight Center, Greenbelt, Maryland 20771

Gerald L. Burdett ; Gerald Soffen | [S.l.] : American Astronautical Society | AAS science and technology series | 1987

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Visions of tomorrow : a focus on national space transportation issues

Gerald Soffen | [S.l.] : American Astronautical Society | AAS science and technology series | 1987

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