Using the same reference multiple times in Wikipedia
For multiple use of the same inline citation or footnote, you can use the named references feature, choosing a name to identify the inline citation, and typing
<ref name="name">text of the citation</ref>Thereafter, the same named reference may be reused any number of times either before or after the defining use by typing the previous reference name, like this:
<ref name="name" />The use of the slash before the > means that the tag is self-closing, and the </ref> used to close other references must not be used in addition.
https://en.wikipedia.org/wiki/Wikipedia:Citing_sources#Repeated_citations