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Frequently asked questions

How are search results sorted according to relevance?

Your search results are sorted so the titles that best match your search words are listed first. The relevance algorithm is very complex. Each item in the search result is weighted depending on whether your string is part of fields of special importance, such as title or author fields. The relevance algorithm is adjusted on an ongoing basis by the State and University Library development group.

The relevance sorting does not reflect which works are most often borrowed, or are most frequently cited or referred to. Neither does the sorting reflect the opinion of an authority about what is most important within a specific subject area. Unfortunately, our search system is not that intelligent – at least not yet.

You can also choose to sort by year of publication or by title (the latest come first). To do so, click on year or title in the heading above your results.

Can I search by ISBN and ISSN?

Don’t include the hyphens when you search by ISBN. For example, you can find a book with ISBN 87-595-2066-3 by searching for 8759520663. You can find the same book by using its 13-digit ISBN – 9788759520666.

Hyphens are included in searches by ISSN, for example 0098-7484.

If I search for an individual, I get literature both by the person and about the person. Can I get just one of the two?

If you search for literature about an individual, for example H. C. Branner, you can write su:"branner h c". Similarly, you can write au:"branner h c" to find books by H. C. Branner.

A bracket puts words into a group, regardless of their order, for example au:(wulff morgenthaler) returns all titles for which the two individuals Wulff and Morgenthaler are both listed as authors. First try to search without codes and without using the limitation options on the right side of the search results – it often produces a good result.

Read more about several such specific search options.


How do I search for special characters?

In standard searches, you don’t need to distinguish between small and capital letters – they are always the same within the system. It therefore doesn’t matter whether you write bjørn lomborg or Bjørn Lomborg.


You don’t have to use accents and delimiters either.

Please note, however, that if you limit your search to a specific field, you need to use characters with correct accents. For example, "rene goscinny" works well as a search, but if you use the code au: to only search for him as an author, i.e. au:"rene goscinny" you get very few results. In this case, you MUST include the accent – au:"rené goscinny"

Can I link to a search or an item?

The URL for a search result contains your search string, so it can be re-used or e-mailed to others.
For example, the search string pu:statsbiblioteket is contained in the following URL:

The URL shown for an individual title contains the ID for this particular item and can also be re-used.
For example, the identification sb_2624467 is contained in the following URL:

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Worth knowing


Whenever your favourite journal introduces a new table of contents, you can be updated by e-mail via TDNet.

See Also

See Also