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Astrophysics Data System

Astrophysics Data System

Digital library portal operated by the Smithsonian.

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  1. Smithsonian Astrophysical Observatory

    Astronomical observatory in Massachusetts, US.

    57%

  2. NASA

    American space and aeronautics agency.

    22%

  3. Digital library

    Online database of digital resources.

    22%

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Share of the 131 readers arriving from another article

  1. Smithsonian Institution

    US group of museums and research centers.

    15%