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Terms of use for databases

Conditions are attached to the use of information sources (databases) provided by UBL.

Terms of use may vary from one database to another. For detailed information, we therefore refer in all cases to the conditions of use as indicated in the licence agreement. These conditions can be found in brief via the Show License button in the Catalogue and in more detail at the general information on the database website.

You may:

  • browse and search materials

  • download, print or save individual articles or parts of books for personal use for study, teaching or research purposes

  • share individual articles or parts of books with third parties for personal use for academic research and communication

  • include links to online resources in Brightspace, syllaby and other course materials used in teaching at Leiden University

  • download materials for the purpose of text and data mining for research. For assistance with this, please contact the Centre for Digital Scholarship

You may not:

  • distribute, sell or modify content or create derivative works from it
  • download content using bot software or other automatic processes
  • use the licensed content for commercial purposes
  • download content excessively and systematically for distribution and/or retention for reasons other than text and data mining (see below)

Excessive downloading

Users may make unrestricted use of digital resources. However, excessive and/or systematic downloading, distribution and/or storage of substantial portions of licensed material is not permitted. Excessive use occurs if:

  • more than average articles are downloaded one by one at high speed
  • continuous downloading of tables of contents, search results, citations or other output
  • downloading entire volumes of e-journals
  • using robots, spiders or other automated programmes to download online content
  • downloading content through a proprietary interface, such as web crawling
  • more than 5% of the whole is downloaded through the interface provided

UBL assumes that potential users are aware of the above and therefore places all responsibility for lawful action on the user. Misuse is not only unlawful, but can also have unpleasant consequences. The provider may block access to its content due to excessive downloading, such that colleagues and fellow students risk being temporarily deprived of information. If the limit for average usage is exceeded, UBL must intervene and a member of the ICT department will contact you. You will then be expected to adjust your use of digital resources as requested. 

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