R Markdown: place an Appendix after the "References" section? - r

Question

I am writing a report with R Markdown in which I include references. The problem is that R markdown automatically places references at the end of the report. I would like to place an Appendix after the references, is there a way to do it? I saw that it is possible with a child document but I would like to have everything in a unique .Rmd file.
Below is a reproducible example:
---
title:
author:
date:
abstract:
output:
pdf_document:
template: NULL
number_sections: true
citation_package: biblatex
bibliography: references.bib
biblio-style: bwl-FU
---
# Partie 1
\cite{greenwood_financial_1989}
<!-- where I would like the references to be -->
# Appendix
bla bla
and here is the content of the references.bib file:
#article{greenwood_financial_1989,
title = {Financial Development, Growth and the Distribution of Income},
url = {https://www.nber.org/papers/w3189},
number = {3189},
journaltitle = {NBER Working Paper Series},
date = {1989},
author = {Greenwood, Jeremy and Jovanovic, Boyan}
}
Any idea ?

Answer 1

This is explained in the R Markdown Cookbook (section 3.5.4). We can force the bibliography to be printed at a particular place with:
# References
<div id="refs"></div>
# Appendix
Note that:
this works if we cite the papers with #id_of_paper (which is the recommended way in R Markdown) but not with \cite{id_of_paper}.
this does not work if we use citation_package: biblatex in YAML
Here's my adapted example:
---
title:
author:
date:
abstract:
output:
pdf_document:
template: NULL
number_sections: true
bibliography: references.bib
biblio-style: bwl-FU
---
# Partie 1
#greenwood_financial_1989
# References
<div id="refs"></div>
# Appendix
bla bla

Answer 2

If using
citation_package: biblatex
you can include the bibliography at an arbitrary point using
\printbibliography
This does not, of itself, stop pandoc adding a (further) end-of-document bibliography, but since pandoc ignores latex in non-latex output, we can suppress that by redefining \printbibliography on the fly to do nothing.
So try this, for a references section preceding an Appendix:
# References
<div id="refs"></div>
\printbibliography[heading=none]
\def\printbibliography{}
# Appendix 1
Appendix goes here, and is not followed by a bibliography.