Publications on OPUS Würzburg are basically equal to print publications and therefore they can be cited. There are different ways to cite electronic domcuments. Please refer to your citation guidelines for more details. One way is a citation according to ISO 690-2.

The following examples show, how electronic publications can be cited according to ISO 690-2. "Date" means in this case the last time the author accessed a source.

• Example 1 (doctoral thesis):
  Mustermann, Klaus: Title of thesis. - Würzburg, Univ., Diss., 2020. - [online].
  DOI: 10.25972/OPUS-XXXXX [Date]
• Example 2 (any publication):
  Mustermann, Klaus: Title. - Würzburg : Universität Würzburg, 2020. - [online].
  URN: urn:nbn:de:bvb:20-opus-XXXXX [Date]
• Example 3 (postprint):
  Authors: Title. Journal Title (Year) Volume (Issue), Pages.
  DOI of the primary publication or URN: urn:nbn:de:bvb:20-opus-XXXX [Date]

To guarantee persistence in access and citation we provide a persistent identifier for each document, the URN and in addition for primary publications the DOI. While URLs refert to specific physical locations of resources and may change if the resource moves from one host to another, URN and DOI use a resolving system which indexes the current URL of a resource. Therefore please use the DOI or URN for citation and linking of resources on OPUS Würzburg.

URN (Uniform Resource Name)

There is an URN for each document published on OPUS. We provide the URNs in cooperation with the German National Library (DNB). To transform an URN to an URL and make it readable for a web browser, you simply put the name of a resolver in front of the URN. In this case it is https://nbn-resolving.de:
URN: urn:nbn:de:bvb:20-opus-XXXXX
Input: https://nbn-resolving.de/urn:nbn:de:bvb:20-opus-XXXXX

DOI (Digital Object Identifier)

DOIs are allocated for all documents that are published for the first time on OPUS Würzburg. If required, a DOI can be assigned to other and older documents. This service is provided in cooperation with DataCite and the Technical Information Library (Technische Informationsbibliothek, TIB) Hanover. To resolve a DOI, put https://doi.org/ in front of the DOI.
DOI: 10.25972/OPUS-XXXXX
Input: https://doi.org/10.25972/OPUS-XXXXX