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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.

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• 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 combines all articles that are missing citations for specific statements, tagged since the given month (or before), from December 2009 (2009-12) to enable us to work through the backlog more systematically. It is a member of Category:Articles with unsourced statements.
Adding {{Fact}} after an unsourced statement will add the article to this category. Use {{Citations missing}} for articles that cite some sources, but insufficiently.

Please use {{Unreferenced}} for articles that do not cite any sources at all. See Category:Articles lacking sources for pages that have no identified source material.

You can also participate in Wikipedia:WikiProject Fact and Reference Check.

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• Please help improve an article in this category by adding references to reliable sources that verify content within the article. Once the reliable source references have been added, the unsourced (citation needed) tag can be removed.

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