rmarkdown beamer 减少参考字体大小

Question

如何减小用 rmarkdown 编写的 beamer 演示文稿的参考部分中的字体大小？ 我能够在多张幻灯片上获得参考文献，但是它们太多了，我也想减小字体大小。

---
title: "minimal reproducible example"
author: "User"
date: "April 2022"
output: beamer_presentation
bibliography: references.json
---

## Main question



How can I reduce the font size in the references section of an beamer
presentation written in rmarkdown (@xie_etal20, @rcoreteamLanguageEnvironmentStatistical2021)?

I was able to get the references on multiple slides, but they are so
many, I would like to also reduce the font
size.


## References {.allowframebreaks}

Answer 1

您可以像这样更改字体大小：

---
title: "minimal reproducible example"
author: "User"
date: "April 2022"
output: 
  beamer_presentation:
    keep_tex: true
bibliography: test.bib
header-includes:
  - \AtBeginEnvironment{CSLReferences}{\tiny}
---

## Main question



How can I reduce the font size in the references section of an beamer
presentation written in rmarkdown (@einstein)?

I was able to get the references on multiple slides, but they are so
many, I would like to also reduce the font
size.


## References {.allowframebreaks}