NASA-funded project which maintains four bibliographic databases: Astronomy and Astrophysics, Instrumentation, Physics and Geophysics, and preprints in Astronomy. The main body of data in the ADS consists of searchable bibliographic records and selected full-text scans of astronomical literature, which can be browsed though the Browse interface. In addition, ADS provides access and pointers to external resources, including electronic articles, data catalogs and archives.
Links to full-text are available in the short records in the search results. Links are single-letter coded: E =external HTML link (which works when the Libraries subscribe to the title or when the title is available from a free service); F =PDF link (which works when the Libraries subscribe to the title or when the title is available from a free service); X =ArXiv preprint link; G=scanned article (in GIF format); and D =online data link. Labeled links are also available on the full records of each citation. For electronic access to articles that do not contain a direct link, search the journal title in the E-Journals A-Z. To see if we own a paper copy of the item, search the, InfoKat Discovery Library Catalog. If we do not own the item in any format, and you are a UK-affiliate, you may request the item through Interlibrary Loan.