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NASA Technical Reports Server (NTRS) provides access to aerospace-related citations, full-text online documents, images and videos – scientific and technical information created or funded by NASA.
On-line archive of major National Solar Observatory data sets.
NORA aggregates scholarly content from over 50 Norwegian archives. It is a collaboration between the university libraries at the University of Bergen, NTNU, University of Troms? with funding from the Norwegian Digital Library.
An authoritative directory of academic open access repositories.
This collection includes Open Access articles from academic and research journals provided by Oxford, all available free of charge.
One of the biggest collections of free downloadable ebooks, created since 1971. At the moment it is possible to download over 32,000 free ebooks. No fee or registration is required.
Registry of Open Access Repositories
Empirical data and other relevant information from various research areas
This digitized collection of free scholarly scientific journals is available as part of the Swiss Electronic Academic Library Service. Titles are in German and in French. Coverage dates back to the early 1800's.
This collection includes Open Access articles provided by Springer, all available free of charge. Articles published under the Bohn Stafleu van Loghum are not included.
