It is used to build and maintain a list or lists of pages—primarily for the sake of the lists themselves and their use in article and category maintenance. It is not part of theencyclopedia's categorization scheme.
These categories are used to track, build and organize lists of pages needing "attentionen 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 subcategories into a larger, more efficient list (discriminated by classifications).
Typically, tracking categories are automatically populated by templates invoked in pages or by the MediaWiki software (seeSpecial:TrackingCategories for an overview of the latter).
Administrators: Please do not delete this category as empty!
This category may be empty occasionally or even most of the time.
This is a tracking category forCS1 citations that have|bibcode= errors.
WhenCitation Style 1 andCitation Style 2 templates contain|bibcode=, a test is done to see if thebibcode identifier has the proper format.[1] Bibcodes are expected to match these requirements:
length must be 19 characters (<message> = 'length')
characters in position(s): (except as specified otherwise, violations produce 'value' in the <message> portion of the error message):
1–4 must be digits and must represent a year in the range of 1000 – next year (<message> = 'year')
5 must be a letter
6–8 must be a letter, ampersand, or dot (ampersand cannot directly precede a dot; &. (<message> = 'journal'))
9 must be a letter or dot
10–18 must be a letter, digit, or dot
19 must be a letter or dot
To resolve this error, ensure that the|bibcode= value is correct.
Pages with this error are automatically placed in Category:CS1 errors: bibcode.[a]
^Pages in the Category talk, Draft talk, File talk, Help talk, MediaWiki talk, Module talk, Portal talk, Talk, Template talk, User, User talk, and Wikipedia talk namespaces are not included in the tracking categories. In addition, pages with names matching the patterns '/[Ss]andbox', '/[Tt]estcases', '/[^/]*[Ll]og', and '/[Aa]rchive' are not included in the tracking categories.
