Endnotes two equal notes in same chapter?

Question

I need to cite as an endnote (with the endnotes package) twice in the same chapter of a document. How do I do it without introducing twice the reference? That is, how do I refer to the same endnote in different parts of the chapter? Thanks

Answer 1

You can use the \label-\ref mechanism. The only slight problem is that the \label command must go inside the argument to \endnote:

\documentclass{article}
\usepackage{endnotes,refcount}

\begin{document}

Start\endnote{What?}

Text\endnote{abc\label{dummy}}

More Text\endnotemark[\getrefnumber{dummy}]

\theendnotes
\end{document}

A couple of LaTeX runs are neeeded, as usual, for the number to stabilize. We need \getrefnumber instead of \ref because otherwise the first run would fail, since \endnotemark needs to see a number (after expansion).

Answer 2

I found the following to be working:

\documentclass{article}
\usepackage{endnotes}

\begin{document}

Text\endnote[1]{abc}

More Text\endnotemark[1]

\theendnotes
\end{document}

Basically you define a counter and then just refer to it via \endnotemark[num] however I'm not sure whether that means you have to manually adjust all the counters.