Names the type of publication identifier, or the organization or system that defined the identifier.
This attribute is used in three contexts:
As part of the article metadata (for example, on the <article-id> element, which holds an identifier for the entire article),
Inside a bibliographic citation (for example, on the <pub-id> element, which identifies a publication cited in a bibliographic reference list), and
On an object identifier (for example, on the <object-id> element, which can act as an identifier for any number of different elements).
Value | Meaning |
---|---|
art-access-id | Generic article accession identifier for interchange and retrieval between archives |
coden | Obsolete PDB/CCDC identifier (may be present on older articles) |
doaj | Directory of Open Access Journals |
doi | Digital Object Identifier |
isbn | International Standard Book Number |
manuscript | Identifier assigned to a manuscript |
other | None of the named identifiers |
pii | Publisher Item Identifier; see http://web.archive.org/web/20031013073003/http://www.elsevier.nl/inca/homepage/about/pii/ |
pmcid | PubMed Central identifier |
pmid | PubMed ID; see http://www.ncbi.nlm.nih.gov/sites/entrez?db=pubmed |
publisher-id | Publisher’s identifier, such as an article-id, artnum, identifier, article-number, pub-id, etc. |
sici | Serial Item and Contribution Identifier (An ANSI/NISO Z39.56 code to uniquely identify volumes, articles, or other parts of a periodical. A journal article may have more than one SICI, for example, one for a print version and another for an electronic version.) |
Value | Meaning |
---|---|
Text, numbers, or special characters | The type of identifier doior name or type of organization that created the identifier aggregator |