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Scientific and technical literature on aerospace related subjects.
Coverage: 1915 - present
The NTRS integrates 3 NASA collections: the NACA Collection containing citations and reports from the National Advisory Committee for Aeronautics period from 1915 to 1958, with information dating back to 1900; the NASA collection containing citations and documents created or sponsored by NASA from 1958 to the present; and the NIX Collection containing citations and links to images, photos and movies.