Help:Citation
To display the references at the end of an article in the correct format, the References template should be used by inserting
at the appropriate place. For particularly long reference sections, it is possible to arrange the references into multiple columns. For example, to create two columns, you would enter
. To allow the browser to decide the number of columns based on screen resolution, you can also specify a column width, e.g.,
.
To insert references at the appropriate points in the article, it is best to add [1] at the end of the relevant information or section. Source should be a link to the article of the source, along with an appropriate page number. An overview of the abbreviations for the source template can be found here (German sources) and here (English sources). This will create a corresponding entry in the references section. If a reference, such as the same page or pages in a book, is used in multiple places in the article, these references can be grouped. To do this, add [2] at the appropriate place. "Description" should be the name of the reference work, essentially a description of the source. Quotation marks are only needed if the description contains one or more spaces, otherwise, they can be omitted. Source should then be a link to the article of the source, along with an appropriate page number. Usually, it is best to enter the name of the article in both cases, but for space-saving reasons, a readily recognizable abbreviation is sufficient for the description.