Category:CS1 maint: Explicit use of et al.

This is a tracking category It is used to build and maintain lists of pages—primarily for the sake of the lists themselves and their use in article and category maintenance. They are not part of the encyclopedia's categorization scheme. More information: This category is hidden on its member pages—unless the corresponding user preference is set. These categories are 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).

Administrators: Please do not delete this category even if it is empty! This category may be empty occasionally or even most of the time.

This is a tracking category for CS1 and CS2 citations where any of the author or editor parameters contain some form of 'et al.' either as a separate author/editor (|author6=et al.) or as a suffix added to a name list (|authors=Smith, Jones, et al.) or first name (|first=John, et al.). Pages in this category should only be added by Module:Citation/CS1.

Use of the |display-authors= parameter, as documented at Template:Cite journal#Display options and Template:Cite encyclopedia#Display options, is recommended instead of writing "et al." in an author parameter.

Citation Style 1 and Citation Style 2 error messages are visible to all readers. Maintenance category messages remain hidden. Editors who wish to see all cs1|2 maintenance category messages can do so by updating either their common CSS page or their specific skin's CSS page (common.css and skin.css respectively) to include the following:

.citation-comment {display: inline !important;} /* show all Citation Style 1 error and maintenance messages */

Even with this css installed, older pages in Wikipedia's cache may not have been updated to show these error messages even though the page is listed in one of the tracking categories. A WP:NULLEDIT will resolve that issue.