Category: Reference Database
Publisher: NASA/ Smithsonian Astrophysical Observatory (Link)
Description:
The SAO/NASA Astrophysics Data System (ADS) is an open access Digital Library portal for researchers in Astronomy and Physics, operated by the Smithsonian Astrophysical Observatory (SAO) under a NASA grant. The ADS maintains three bibliographic databases containing more than 10.4 million records: Astronomy and Astrophysics, Physics, and arXiv e-prints. Astrophysics Data System (ADS) (OA) | NASA/ Smithsonian Astrophysical Observatory | Open Access