NTRS
Access to the database: http://ntrs.nasa.gov/NASA Technical Report Server
- bibliographical database, partially full-text (approximately 10 %)
- information provided by American institutions financed from the state budget of the USA
Content focus:
- principally “grey” literature in the area of physics, geophysics, astronomy, chemical physics, chemistry, computer technology, electronics and technical sciences
- 836,918 entries (November 2004)