.. _dc:relation_alternativeidentfier: Alternative Identifier (R) ^^^^^^^^^^^^^^^^^^^^^^^^^^ DC Field ~~~~~~~~ ``dc:relation`` Usage ~~~~~ *Recommended* Usage Instruction ~~~~~~~~~~~~~~~~~ List alternative identifiers for this publication that are not the primary identifier (repository splash page), e.g., the DOI of publisher’s version, the PubMed/arXiv ID. The term is defined by ``info:eu-repo/semantics/altIdentifier//`` where ```` must be one of the following: * ``ark`` – Archival Resource Key * ``arxiv`` – arXiv.org identifier * ``doi`` – Digital Object Identifier * ``hdl`` – Handle * ``isbn`` – International Standard Book Number * ``pissn`` – International Standard Serial Number (print version) * ``eissn`` – International Standard Serial Number (electronic Version) * ``pmid`` – PubMed ID * ``purl`` – Persistent Uniform Resource Locator * ``urn`` – Uniform Resource Name * ``wos`` – Web of Science accession number Since ~~~~~ OpenAIRE Guidelines v3 Example ~~~~~~~ .. code-block:: xml :linenos: info:eu-repo/semantics/altIdentifier/doi/10.1234/789.1