diff --git a/content/docs/adapters/calculix/adapter-calculix-overview.md b/content/docs/adapters/calculix/adapter-calculix-overview.md
index 581b710a7b0..79a50a6bcf3 100644
--- a/content/docs/adapters/calculix/adapter-calculix-overview.md
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@@ -21,10 +21,10 @@ The latest supported CalculiX version is {{site.calculix_version}}. If you alrea
 
 ## History
 
-The adapter was initially developed for conjugate heat transfer (CHT) simulations via preCICE by Lucia Cheung in the scope of her master’s thesis [[1]](https://mediatum.ub.tum.de/1461907) in cooperation with [SimScale](https://www.simscale.com/). For running the adapter for CHT simulations refer to this thesis. The adapter was extended to fluid-structure interaction by Alexander Rusch [[2]](https://doi.org/10.18419/opus-9334).
+The adapter was initially developed for conjugate heat transfer (CHT) simulations via preCICE by Lucia Cheung in the scope of her master’s thesis[^1], in cooperation with [SimScale](https://www.simscale.com/). For running the adapter for CHT simulations refer to this thesis. The adapter was extended to fluid-structure interaction by Alexander Rusch[^2].
 
 ## References
 
-[1] Lucia Cheung Yau. Conjugate heat transfer with the multiphysics coupling library precice. Master’s thesis, Department of Informatics, Technical University of Munich, 2016.
+[^1]: Lucia Cheung Yau. [Conjugate heat transfer with the multiphysics coupling library preCICE](https://mediatum.ub.tum.de/1461907). Master’s thesis, Department of Informatics, Technical University of Munich, 2016.
 
-[2] Benjamin Uekermann, Hans-Joachim Bungartz, Lucia Cheung Yau, Gerasimos Chourdakis and Alexander Rusch. Official preCICE Adapters for Standard Open-Source Solvers. In Proceedings of the _7th GACM Colloquium on Computational Mechanics for Young Scientists from Academia_, 2017.
+[^2]: Benjamin Uekermann, Hans-Joachim Bungartz, Lucia Cheung Yau, Gerasimos Chourdakis and Alexander Rusch. [Official preCICE Adapters for Standard Open-Source Solvers](https://doi.org/10.18419/opus-9334). In Proceedings of the _7th GACM Colloquium on Computational Mechanics for Young Scientists from Academia_, 2017.
diff --git a/content/docs/docs-meta/docs-meta-cheatsheet.md b/content/docs/docs-meta/docs-meta-cheatsheet.md
index 8e52677e1ff..fbe26c8f00e 100644
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@@ -261,3 +261,9 @@ In the future we might implement [server-side rendering](https://gendignoux.com/
 ##### H5 Heading
 
 “Lorem Ipsum” is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry’s standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.
+
+## Footnotes
+
+This is a footnote reference[^1].
+
+[^1]: A footnote.