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A circular reference is not to be confused with the logical fallacy of a circular argument.Although a circular reference will often be unhelpful and reveal no information, such as two entries in a book index referring to each other, it is not necessarily so that a circular reference is of no use.
A circular reference occurs when the formula in one cell refers—directly, or indirectly through a chain of cell references—to another cell that refers back to the first cell. Many common errors cause circular references. However, some valid techniques use circular references.
The template is used to tag references that a circular, mirrors or forks, or republished works Template parameters [Edit template data] This template prefers inline formatting of parameters. Parameter Description Type Status Month and year date no description Auto value {{subst:CURRENTMONTHNAME}} {{subst:CURRENTYEAR}} Line suggested See also {{ Circular }} {{ Circular reporting }}, for when it ...
The named reference $1 was invoked but never defined (see the help page). displays for both references. This can be very confusing, as the order of references in the list may not match the order used in the content. If {} is used and the |refs= parameter is missing or malformed. If a named reference is invoked within the reference list markup:
Please reference this page and the page where you have the problem so we can understand your issues. For basic information on the footnotes system, see Referencing for beginners ; for advanced help, see Footnotes .
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This template indicates that the article cites a source that previously got its information from Wikipedia. Wikipedia may not cite itself, and citing a source that comes from Wikipedia is a circular reference, and may not be used as a citation for the same reason.
Sometimes the reference list markup exists, but the message is shown because the <ref> tag immediately before the reference list markup does not have a closing </ref> or it is malformed, thus hiding the rest of the text in the article, including the reference list.