Worldwide Use and Impact of the NASA Astrophysics Data System Digital Library

  title={Worldwide Use and Impact of the NASA Astrophysics Data System Digital Library},
  author={Michael J. Kurtz and G{\"u}nther Eichhorn and Alberto Accomazzi and Carolyn Stern-Grant and Markus Demleitner and Stephen S. Murray},
  journal={J. Assoc. Inf. Sci. Technol.},
The NASA Astrophysics Data System (ADS), along with astronomy's journals and data centers (a collaboration dubbed URANIA), has developed a distributed online digital library which has become the dominant means by which astronomers search, access, and read their technical literature. Digital libraries permit the easy accumulation of a new type of bibliometric measure: the number of electronic accesses (“reads”) of individual articles. By combining data from the text, citation, and reference… 

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