Help:Multiple Use Footnote
From selfstudy
<ref name=foo>text of note</ref> at each in-text place. Alternatively <ref name=foo /> A self-closing tag on every use after name=foo has been defined. (Only needed once per article)<references/> under the Notes heading; exactly the same as to make a single-use note.
[1] at each in-text place.
Alternatively [1] A self-closing tag on every use after name=foo has been defined.
(Only needed once per article) under the Notes heading; exactly the same as to make a single-use note.