References

References or footnotes can be used within an article to cite sources, provide tangential information and commentary, or provide other explanatory information. They rely on the Cite extension and will automatically generate a list of footnotes at the bottom of the article.

Overview
A reference is generated with HTML tags (see below) or by selecting the Insert Reference in the Visual Editor. Any text placed between these two tags or input in the Visual Editor field will then display at the bottom of the article or wherever  is placed in the article. It's generally recommended to place the reference table at the bottom of the article, under a specific heading.

Once placed, the reference will create a superscript link enclosed in square brackets that will automatically scroll the page to the reference and highlight it when clicked:

References are dynamically generated and automatically numbered by the software according to the order they appear in the article.

Formatting
There are no set rules when it comes to formatting a reference and each wiki can create their own standard formatting. Formatting can vary greatly between wikis and can be anything: A link to another article on the wiki that contains the source (see here), a direct quotation (see here), or a block of text.

It's generally a good idea to avoid placing images in references, as these will rarely display correctly, causing other references to become unreadable.

Code
Cite extension is the software extension for the footnotes system. Two HTML-style tags are used to define and show the references.

Single use footnotes are defined by enclosing content within :

A footnote used multiple times may be defined with a name:
 * content

To invoke a named footnote:

Footnotes may be defined in groups:
 * content

Names and groups may not be a numeric integer. The quotes are optional unless the name includes a space, punctuation or other mark. It is recommended that names be kept simple and restricted to the ASCII character set.

To display the reference list, after all of the  tags, include:

To display footnotes defined in a group include:

Error messages
The Cite extension has the ability to detect errors. This section documents the error messages and provides an understanding of the problem and solutions.

The messages will be shown as bold red.

Technical information
Internal messages are generated by the Cite.php extension and shown as a MediaWiki message. See the Parser hooks section of Special:Version for the installed version of Cite.php. These messages are in the MediaWiki namespace and can be modified only by admins.

Reference table example
The following table is displayed here through the use of.

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