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 Template:Para; 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 id option in a Template:Tl 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.