\footnotemark
With no optional argument, the \footnotemark
command puts the
current footnote number in the text. This command can be used in
inner paragraph mode. You give the text of the footnote separately,
with the \footnotetext
command.
This command can be used to produce several consecutive footnote markers referring to the same footnote with
\footnotemark[\value{footnote}]
after the first \footnote
command.