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Access to Free Electronic Resources

Here, we have listed further electronic resources which you can use in addition to the licensed electronic resources you can access via our Primo Knowledge Portal. These are generally freely accessible sources as well as sources only freely accessible to members of TU Berlin. This list is regularly updated.

Some of these offers are only available for a limited time and, as such, are not listed in the Primo knowledge portal. To access these resources, use the following links.

Tools for finding free resources: We recommend installing the browser plug-ins Unpaywall, Open Access Button and CORE to quickly and easily find freely accessible versions of papers.

If you have difficulty accessing these resources, would like to add to this list, or have questions, please contact us via email or chat.

Special information for instructors

Publish your own research open access

Finding Free Resources through Primo

  • Please continue to use the Primo Knowledge Portal to search for literature and resources while the library is closed.
  • The primary search scope is now "All TU/UdK collections plus articles", i.e. you will not only find our holdings including our licensed e-books and e-journals as usual, but also many journal articles. Our new filter in the results list “Media type” allows you to quickly filter for electronic resources.
  • Results which are "Open Access" are identified as such in the list. These are freely available to all.
  • Other resources may only be accessible to members of TU Berlin via a VPN or Shibboleth. Information about access.

Platforms for Free Resources (All Types)

  • TU Berlin DepositOnce repository: nearly 10,000 publications from members of TU Berlin. Open Access
  • Google Scholar: search engine for academic literature; many documents are freely accessible
  • BASE (Bielefeld Academic Search Engine): one of the world’s largest search engines for academic documents online; 150 million documents, roughly 60% Open access
  • Project MUSE: Access to articles and e-books, many university presses; Search page for freely accessible content. Some resources are only available temporarily.
  • DBIS Corona list: List of temporarily free offers compiled by various libraries, partly only accessible with already existing licenses

Journal Articles


Digital Teaching and Learning Tools

Access to Resources of other Libraries

Particularly interesting for those in the humanities and social sciences: temporary access to the electronic resources of the Staatsbibliotheken 



If you link temporary offers in ISIS, please note that these may no longer be freely accessible after the specified period.
Please also observe the general copyright regulations for the temporarily available resources.

Zusatzinformationen / Extras