Electronic documents are published on SPKtrum under a CC license where possible. All descriptive bibliographic metadata published on SPKtrum - with the exception of abstracts - are available for free reuse under the CC0 1.0 Universal license.
Citation of first publications
When using a contribution identified as first publications in SPKtrum in a new context, you can make the full citation either using the citation form indicated in the right column of the respective contribution. Alternatively, a citation can be made using only the persistent identifier (DOI) in the following form:
Source citation: SPKtrum repository, persistent identifier (DOI) of the digital object.
Example: SPKtrum Repository, https://doi.org/10.58159/20230330-000 (DOI).
Citation of secondary publications
When using an electronic document that is designated as a secondary publication, please use the citation form indicated in the right column of the respective article.