diff --git a/book/references.bib b/book/references.bib
index 0b64ec8..3f38628 100644
--- a/book/references.bib
+++ b/book/references.bib
@@ -2,7 +2,7 @@
   title={LaTeX to Markdown conversion},
   author={Idema (Delft University of Technology), Timon},
   institution ={Delft University of Technology},
-  howpublished={\url{https://gitlab.tudelft.nl/opentextbooks/latex-to-markdown-conversion}},
+  url={https://gitlab.tudelft.nl/opentextbooks/latex-to-markdown-conversion},
   year={2024},
   note = {Retrieved [December, 2024]. BSD-3.}
 }
@@ -11,9 +11,9 @@
   author       = {Hall, Matt},
   title        = {Which open licence should I choose?},
   institution  = {Agile Scientific},
-  howpublished = {\url{https://agilescientific.com/blog/2021/2/17/which-open-licence-should-i-choose}},
+  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,
@@ -26,95 +26,95 @@
 @misc{tud_cip_24,
   author       = {{TU Delft Library}},
   title        = {Copyright Information Point},
-  howpublished = {\url{https://www.tudelft.nl/library/support/copyright}},
+  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,
   author       = {{TeachBooks}},
   title        = {GitHub reusable action: publish your book online to GitHub Pages},
-  howpublished = {\url{https://github.com/TeachBooks/deploy-book-workflow}},
+  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,
   author       = {{TeachBooks}},
   title        = {Sphinx extension: download link replacer},
-  howpublished = {\url{https://github.com/TeachBooks/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,
   author       = {{TeachBooks}},
   title        = {Sphinx extension: JupyterBook-Patches},
-  howpublished = {\url{https://github.com/TeachBooks/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,
   author       = {{TeachBooks}},
   title        = {Local Annotator Extension},
-  howpublished = {\url{https://github.com/TeachBooks/annotator}},
+  url          = {https://github.com/TeachBooks/annotator},
   year         = {2024},
-  note =         {Retrieved [December, 2024]. BSD-3-Clause.}
+  note         = {Retrieved [December, 2024]. BSD-3-Clause.}
 }
 
 @misc{nested,
   author       = {{TeachBooks}},
   title        = {Git workflow: Share content between book},
-  howpublished = {\url{https://github.com/TeachBooks/Nested-Books}},
+  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,
   author       = {{TeachBooks}},
   title        = {Sphinx extension: Grasple},
-  howpublished = {\url{https://github.com/TeachBooks/Sphinx-Grasple-public}},
+  url          = {https://github.com/TeachBooks/Sphinx-Grasple-public},
   year         = {2024},
-  note =         {Retrieved [December, 2024]. MIT.}
+  note         = {Retrieved [December, 2024]. MIT.}
 }
 
 @misc{image,
   author       = {{TeachBooks}},
   title        = {Sphinx extension: Image Inverter},
-  howpublished = {\url{https://github.com/TeachBooks/Sphinx-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,
   author       = {{TeachBooks}},
   title        = {Sphinx extension: TU Delft theme},
-  howpublished = {\url{https://github.com/TeachBooks/Sphinx-TUDelft-theme}},
+  url          = {https://github.com/TeachBooks/Sphinx-TUDelft-theme},
   year         = {2024},
-  note =         {Retrieved [December, 2024]. MIT.}
+  note         = {Retrieved [December, 2024]. MIT.}
 }
 
 @misc{tippy,
   author       = {{TeachBooks}},
   title        = {TeachBooks Sphinx extension: Rich hover over tips},
-  howpublished = {\url{https://github.com/TeachBooks/teachbooks-sphinx-tippy}},
+  url          = {https://github.com/TeachBooks/teachbooks-sphinx-tippy},
   year         = {2024},
-  note =         {Retrieved [December, 2024]. MIT.}
+  note         = {Retrieved [December, 2024]. MIT.}
 }
 
 @misc{template,
   author       = {{TeachBooks}},
   title        = {Your first TeachBook using the GitHub template},
-  howpublished = {\url{https://github.com/TeachBooks/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,
   author       = {{TeachBooks}},
   title        = {Useful python code},
-  howpublished = {\url{https://github.com/TeachBooks/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