Template:Citation Style documentation/id2
- arxiv: ArXiv; must not be wikilinked.
- asin: Amazon Standard Identification Number; must not be wikilinked.
- bibcode: Bibcode; used by a number of astronomical data systems; e.g., 1924MNRAS..84..308E; must not be wikilinked.
- doi: Digital object identifier; e.g., 10.1038/news070508-7; must not be wikilinked.
- doi_brokendate: Date the DOI is broken; must not be wikilinked.
- isbn: International Standard Book Number such as 1-111-22222-9; see Wikipedia:ISBN and ISBN. Dashes in the ISBN are optional, but preferred. Use the 13-digit ISBN where possible; this can normally be found beneath the barcode as a number beginning 978 or 979. For sources with the older 9 digit SBN system, prefix the number with a zero; thus SBN 902888-45-5 should be entered as
|isbn=0-902888-45-5; must not be wikilinked. - issn: International Standard Serial Number; eight characters may be split into two groups of four using a hyphen, but not an N-dash or a space; must not be wikilinked.
- jfm: Jahrbuch über die Fortschritte der Mathematik; must not be wikilinked.
- jstor: JSTOR; mainly for use as part of an
idoption in a {{cite journal}} reference; must not be wikilinked. - lccn: Library of Congress Control Number; must not be wikilinked.
- mr: Mathematical Reviews; must not be wikilinked.
- oclc: Online Computer Library Center; must not be wikilinked.
- ol: Open Library; must not be wikilinked.
- osti: Office of Scientific and Technical Information; must not be wikilinked.
- PMC: PubMed Central article number for full-text free repository of an article; must not be wikilinked.
- PMID: PubMed Unique Identifier; must not be wikilinked.
- rfc: Request for Comments; must not be wikilinked.
- ssrn: Social Science Research Network; must not be wikilinked.
- zbl: Zentralblatt MATH; must not be wikilinked.