This is an administrative category, used for maintenance of the Wikipedia project. It is not part of the encyclopedia and contains non-article pages, or groups articles by status rather than subject. Do not include this category in content categories (except for eponymous maintenance categories).

This is a tracking category. It builds and maintains a list of pages primarily for the sake of the list itself. They are not part of the encyclopedia's categorization scheme.

• This category is hidden on its member pages—unless the corresponding user preference (Appearance → Show hidden categories) is set.
• These categories can be used to track, build and organize lists of pages needing "attention en masse" (for example, pages using deprecated syntax), or that may need to be edited at someone's earliest convenience.
• These categories also serve to aggregate members of several lists or sub-categories into a larger, more efficient list (discriminated by classifications).

This category has a backlog that requires the attention of willing editors.
This notice will hide itself when this category has fewer than 80 items. (recount)

Pages in this category have a footnotes error that usually displays a MediaWiki message starting with Cite error:. See Help:Cite errors for further information.

• If an error message does not display, a reference starting with a <ref> tag may be missing a closing </ref> tag. This may also occur when it is a self-closing tag. Sometimes the reference will be <ref name="xyz" />. If there is no content after the tag that should be a reference and there is no slash (/) before the last bracket, then that could be the problem.
• The problem might also be that there are nested ref tags. This can include having, for example, {{sfn}} tags inside <ref> and </ref>. The solution could be to delete the <ref> and </ref> tags or convert the {{sfn}} into a {{harvn}} tag for example.

The pages Template:Broken ref, Help:Cite errors and subpages contain deliberate errors and do not need to be repaired.

If you fix an error, you can leave this edit summary if you wish:

Fixed incorrect references formatting – [[:Category:Pages with incorrect ref formatting|You can help!]]

Pages in this category are sorted by namespace; articles are sorted by their first letter (A-Z), and pages in other namespaces are sorted using Greek letters so that they are listed after all of the articles.

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