The Astrophysics Data System (ADS) is a NASA-funded project whose main resource is an Abstract Service, which includes three sets of abstracts: 1) astronomy and astrophysics, containing approximately 255,000 abstracts; 2) instrumentation, containing approximately 460,000 abstracts; and 3) physics and geophysics, containing approximately 220,000 abstracts. Each dataset can be searched by author, object name (astronomy only), title, or abstract text words. In addition, they have extended the abstract service to include links to scanned images of over 40,000 journal articles for articles appearing in most of the major astronomical journals. In addition to the Abstract Service, the ADS provides access or pointers to astronomical data catalogs and data archives, thereby making data collected by NASA space missions available to astronomers. In most cases coverage begins in 1975 but older materials are in the process of being added. The database includes journal articles, NASA and other reports, conference proceedings, and some Ph.D dissertations. Information provided by http://www.lib.virginia.edu/brown/dbases/nads.html
NADS
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