Template:Citation Style documentation/id2


 * arxiv: ArXiv; do not wikilink.
 * asin: Amazon Standard Identification Number; do not wikilink.
 * asin-tld: ASIN top-level domain for Amazon sites other than the US; valid values:,  ,  ,  ,  ,  ,  ,
 * bibcode: Bibcode; used by a number of astronomical data systems; example: 1924MNRAS..84..308E; do not wikilink.
 * doi: Digital object identifier; example: 10.1038/news070508-7; do not wikilink; checked to ensure it begins with 10.; if not an error shows and the page is placed in Category:Pages with DOI errors.
 * doi_brokendate: Date the DOI is broken; do not wikilink.
 * isbn: International Standard Book Number such as 978-0812695939; see 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 812695-93-3 should be entered as 0812695-93-3; do not wikilink.
 * 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; do not wikilink.
 * jfm: Jahrbuch über die Fortschritte der Mathematik; do not wikilink.
 * jstor: JSTOR; mainly for use as part of an  option in a cite journal reference; do not wikilink.
 * lccn: Library of Congress Control Number; do not wikilink.
 * mr: Mathematical Reviews; do not wikilink.
 * oclc: Online Computer Library Center; do not wikilink.
 * ol: Open Library; do not wikilink.
 * osti: Office of Scientific and Technical Information; do not wikilink.
 * pmc: PubMed Central article number for full-text free repository of an article; do not wikilink.
 * pmid: PubMed Unique Identifier; do not wikilink.
 * rfc: Request for Comments; do not wikilink.
 * ssrn: Social Science Research Network; do not wikilink.
 * zbl: Zentralblatt MATH; do not wikilink.