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This page explains how to create the Footnotes section for Wikipedia articles. In this context, the word "Footnotes" refers to the Wikipedia-specific manner of documenting an article's sources and providing tangential information, and should not be confused with the general concept of footnotes. This how-to does not cover the formatting of citations within the Footnotes section, which is reviewed in Citing sources. Footnotes are used most commonly to provide: * references (bibliographic citations) to reliable sources, * explanatory information or * source information for tables and other elements. The use of Footnotes is only one of several options for providing source information in the article. Other systems of inline citation, including and , may be used at the editor's discretion in accordance with the guideline on Variation in citation methods. Only certain types of material on the English Wikipedia are required to have an inline citation. There is no requirement to provide a citation for every sentence, because multiple sentences may be supported by the same footnote. For advice on which material should be cited, see the guidelines on When you must use inline citations, the Good article criteria and When to cite. For advice on how to organize and format bibliographic citations, see the guideline on Citing sources and examples of Citation templates. Footnotes are created using the software extension. This extension adds the HTML-like elements , and . The elements are also used in a number of templates; for example, it is becoming more common to use rather than as it can style the reference list. ==Overview== The Footnotes system shows two elements on the page: * A Footnote marker is displayed in the article's content as a bracketed, superscripted number, letter, or word. Examples shown respectively are: . This footnote label is linked to the full footnote. Clicking on the footnote marker jumps the page down to the footnote and highlights the citation. Hovering over a footnote marker will, depending on the user's settings, show a pop-up box containing the footnote. * A Footnote displays the full citation for the source. Together the footnotes are displayed in an ordered list wherever the reference list markup is placed. Each entry begins with the footnote label in plain text. The entire reference list is formatted in a slightly smaller font. :Each successive footnote label is automatically incremented. Thus the first footnote marker would be , the second would be and so on. Custom labels are also incremented: , . :For a single use footnote, the label is followed by a caret (^) that is a backlink to the matching footnote marker. For example: :If a named footnote is used in the text multiple times, then the footnote has multiple backlinks shown as letters: :Clicking on the backlink or pressing backspace returns to the footnote marker. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Help:Footnotes」の詳細全文を読む スポンサード リンク
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