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Citing references
According to scientists, the Sun is pretty big. The Moon, however, is not so big.

Multiple references
This is an example of multiple references to the same footnote.

Such references are particularly useful when citing sources, if different statements come from the same source.

A concise way to make multiple references is to use empty ref tags, which have a slash at the end. Although this may reduce redundant work, please be aware that if a future editor removes the first reference, this will result in the loss of all references using the empty ref tags. This part of the text requires clarification, whereas the entire text is cited.