Research Catalog

  • The evolution of the quasar continuum [microform]: NASA grant NAGW-2201, semiannal report nos. 1, 2, and 3 for the period 1 July 1990 through 31 December 1991 / principal investigator, M. Elvis.

    • Text
    • Cambridge, Mass. : Smithsonian Institution, Astrophysical Observatory ; [Washington, DC : National Aeronautics and Space Administration, 1992]
    • 1992
  • [An astrophysics data program investigation of a synoptic study of quasar continua [microform] : final report]

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1991]
    • 1991
  • A long-term space astrophysics research program [microform] : the evolution of the quasar continuum : NASA grant NAGW-2201, final report for the period 1 July 1990 through 31 December 1997 / principal investigator, M. Elvis.

    • Text
    • Cambridge, Mass. : Smithsonian Institution, Astrophysical Observatory ; [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1998]
    • 1998

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