- <span id="csdoc_ref" />ref: ID for anchor. By default, no anchor is generated. The ordinary nonempty value
|ref=IDgenerates an anchor with the given ID; such a linkable reference can be made the target of wikilinks to full references, especially useful in short citations like shortened notes and parenthetical referencing. The special value|ref=harvgenerates an anchor suitable for the {{harv}} template. See: Anchors for Harvard referencing templates.