Spectra Research Systems, Inc.
National Aeronautics and Space Administration
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Posner, E. C. et al.
National Aeronautics and Space Administration
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Dolan, Fred J.
National Aeronautics and Space Adminstration
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Posner, E. C.
National Aeronautics and Space Administration
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MARSHALL, GEORGE C.
National Aeronautics and Space Administration
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Posner, E.C.
National Aeronautics and Space Administration
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*
National Aeronautics and Space Administration
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Posner, ed., E. C.
National Aeronautics and Space Administration
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Knight, J.C.
National Aeronautics and Space Administration
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Balanis, A., Polka, Lesley A., Polycarpou, Anastasis C.
National Aeronautics and Space Adminstration
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Knight, J.C.
National Aeronautics and Space Administration
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Heffley, Robert K. et al.
National Aeronautics and Space Administration
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