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Observation model and parameter partials for the JPL geodetic GPS modeling software "GPSOMC" [microform] / O.J. Sovers, J.S. Border.
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Pasadena, Calif. : National Aeronautics and Space Administration, Jet Propulsion Laboratory, California Institute of Technology ; [Springfield, Va. : National Technical Information Service, distributor, 1988]
1988
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Properties of nearly perfect crystals at very low temperatures [microform] : final technical report, grant no. NAG 2-270 / principal investigator, J. Weber, report prepared by J.J. Hamilton.
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[Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1994]
1994
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Hydrogen Maser Clock (HMC) experiment [microform] : final report, 19 July 1991 - 28 February 1997, NAS8-39194 / Robert F.C. Vessot, principal investigator; Edward M. Mattison, co-investigator.
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[Cambridge, Mass.] : Smithsonian Astrophysical Observatory ; [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1997]
1997
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