diff --git a/book/references.bib b/book/references.bib
index 3f38628..731967f 100644
--- a/book/references.bib
+++ b/book/references.bib
@@ -4,7 +4,7 @@
   institution ={Delft University of Technology},
   url={https://gitlab.tudelft.nl/opentextbooks/latex-to-markdown-conversion},
   year={2024},
-  note = {Retrieved [December, 2024]. BSD-3.}
+  note = {Retrieved December, 2024. BSD-3.}
 }
 
 @misc{hall21,
@@ -13,7 +13,7 @@
   institution  = {Agile Scientific},
   url          = {https://agilescientific.com/blog/2021/2/17/which-open-licence-should-i-choose},
   year         = {2021},
-  note         = {[Online; posted 17-February-2021]. CC BY.}
+  note         = {Online; posted 17-February-2021. CC BY.}
 }
 
 @misc{jason_moore,
@@ -28,7 +28,7 @@
   title        = {Copyright Information Point},
   url          = {https://www.tudelft.nl/library/support/copyright},
   year         = {2024},
-  note         = {Retrieved [December, 2024]. CC BY 4.0.}
+  note         = {Retrieved December, 2024. CC BY 4.0.}
 }
 
 @misc{deploy_book,
@@ -36,7 +36,7 @@
   title        = {GitHub reusable action: publish your book online to GitHub Pages},
   url          = {https://github.com/TeachBooks/deploy-book-workflow},
   year         = {2024},
-  note         = {Retrieved [December, 2024]. BSD-3-Clause.}
+  note         = {Retrieved December, 2024. BSD-3-Clause.}
 }
 
 @misc{download_link,
@@ -44,7 +44,7 @@
   title        = {Sphinx extension: download link replacer},
   url          = {https://github.com/TeachBooks/Download-Link-Replacer},
   year         = {2024},
-  note         = {Retrieved [December, 2024]. BSD-3-Clause.}
+  note         = {Retrieved December, 2024. BSD-3-Clause.}
 }
 
 @misc{patches,
@@ -52,7 +52,7 @@
   title        = {Sphinx extension: JupyterBook-Patches},
   url          = {https://github.com/TeachBooks/JupyterBook-Patches},
   year         = {2024},
-  note         = {Retrieved [December, 2024]. BSD-3-Clause.}
+  note         = {Retrieved December, 2024. BSD-3-Clause.}
 }
 
 @misc{annotator,
@@ -60,7 +60,7 @@
   title        = {Local Annotator Extension},
   url          = {https://github.com/TeachBooks/annotator},
   year         = {2024},
-  note         = {Retrieved [December, 2024]. BSD-3-Clause.}
+  note         = {Retrieved December, 2024. BSD-3-Clause.}
 }
 
 @misc{nested,
@@ -68,7 +68,7 @@
   title        = {Git workflow: Share content between book},
   url          = {https://github.com/TeachBooks/Nested-Books},
   year         = {2024},
-  note         = {Retrieved [December, 2024]. CC BY 4.0.}
+  note         = {Retrieved December, 2024. CC BY 4.0.}
 }
 
 @misc{grasple,
@@ -76,7 +76,7 @@
   title        = {Sphinx extension: Grasple},
   url          = {https://github.com/TeachBooks/Sphinx-Grasple-public},
   year         = {2024},
-  note         = {Retrieved [December, 2024]. MIT.}
+  note         = {Retrieved December, 2024. MIT.}
 }
 
 @misc{image,
@@ -84,7 +84,7 @@
   title        = {Sphinx extension: Image Inverter},
   url          = {https://github.com/TeachBooks/Sphinx-Image-Inverter},
   year         = {2024},
-  note         = {Retrieved [December, 2024]. BSD-3-Clause.}
+  note         = {Retrieved December, 2024. BSD-3-Clause.}
 }
 
 @misc{tudelft_theme,
@@ -92,7 +92,7 @@
   title        = {Sphinx extension: TU Delft theme},
   url          = {https://github.com/TeachBooks/Sphinx-TUDelft-theme},
   year         = {2024},
-  note         = {Retrieved [December, 2024]. MIT.}
+  note         = {Retrieved December, 2024. MIT.}
 }
 
 @misc{tippy,
@@ -100,7 +100,7 @@
   title        = {TeachBooks Sphinx extension: Rich hover over tips},
   url          = {https://github.com/TeachBooks/teachbooks-sphinx-tippy},
   year         = {2024},
-  note         = {Retrieved [December, 2024]. MIT.}
+  note         = {Retrieved December, 2024. MIT.}
 }
 
 @misc{template,
@@ -108,7 +108,7 @@
   title        = {Your first TeachBook using the GitHub template},
   url          = {https://github.com/TeachBooks/template},
   year         = {2024},
-  note         = {Retrieved [December, 2024]. CC BY 4.0.}
+  note         = {Retrieved December, 2024. CC BY 4.0.}
 }
 
 @misc{useful_code,
@@ -116,5 +116,5 @@
   title        = {Useful python code},
   url          = {https://github.com/TeachBooks/Useful_python_code},
   year         = {2024},
-  note         = {Retrieved [December, 2024]. BSD-3-Clause.}
+  note         = {Retrieved December, 2024. BSD-3-Clause.}
 }
\ No newline at end of file