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Reference Database
The SAO/NASA Astrophysics Data System (ADS) is a 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 13 million records covering publications in Astronomy and Astrophysics, Physics, and the arXiv e-prints. Abstracts and full-text of major astronomy and physics publications are indexed and searchable through the new ADS modern search form as well as a classic search form.
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Subject: Astronomy
Agriculture
10
Anthropology
8
Archaeology
7
Arts
12
Astronomy
Biology
19
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Business
8
Chemistry
9
Computer Science
6
Earth Science
6
Economics
17
Education
17
Engineering
7
Environmental Studies
9
Genetics
7
History
17
Information Science
5
Law
19
Linguistics
14
Literature
7
Materials Science
3
Mathematics
6
Medicine
10
Multidisciplinary
37
Music
2
Pharmacology
7
Philosophy
4
Physics
8
Political Science
14
Psychology
18
Religion
3
Social Work
4
Sociology
24
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