diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index e447f7cf..91966122 100755
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -230,8 +230,10 @@
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     }
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+    "4. Qualifying Exam/2. Writing/test.bib",
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     "201. Metadata/My Library/files/4011/tabledrag_002.css",
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@@ -242,8 +244,6 @@
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diff --git a/4. Qualifying Exam/2. Writing/Untitled.bib b/4. Qualifying Exam/2. Writing/Untitled.bib
new file mode 100644
index 00000000..e69de29b
diff --git a/4. Qualifying Exam/2. Writing/Untitled.tex b/4. Qualifying Exam/2. Writing/Untitled.tex
index 861a83e8..6b8d9693 100644
--- a/4. Qualifying Exam/2. Writing/Untitled.tex	
+++ b/4. Qualifying Exam/2. Writing/Untitled.tex	
@@ -85,18 +85,39 @@
 
 \begin{document}
 
-{[}1{]}
+{[}1{]} {[}2{]} {[}3{]} {[}4{]}
 
 \phantomsection\label{refs}
 \begin{CSLReferences}{0}{0}
-\bibitem[\citeproctext]{ref-bullockHardwareintheloopSimulation2004}
+\bibitem[\citeproctext]{ref-kleinFormallyVerifiedSoftware2018}
 \CSLLeftMargin{{[}1{]} }%
+\CSLRightInline{G. Klein, J. Andronick, M. Fernandez, I. Kuz, T. Murray,
+and G. Heiser, {``Formally verified software in the real world,''}
+\emph{Commun. ACM}, vol. 61, no. 10, pp. 68--77, Sep. 2018, doi:
+\href{https://doi.org/10.1145/3230627}{10.1145/3230627}.}
+
+\bibitem[\citeproctext]{ref-bullockHardwareintheloopSimulation2004}
+\CSLLeftMargin{{[}2{]} }%
 \CSLRightInline{D. Bullock, B. Johnson, R. B. Wells, M. Kyte, and Z. Li,
 {``Hardware-in-the-loop simulation,''} \emph{Transportation Research
 Part C: Emerging Technologies}, vol. 12, no. 1, pp. 73--89, Feb. 2004,
 doi:
 \href{https://doi.org/10.1016/j.trc.2002.10.002}{10.1016/j.trc.2002.10.002}.}
 
+\bibitem[\citeproctext]{ref-sohl-dicksteinDeepUnsupervisedLearning2015a}
+\CSLLeftMargin{{[}3{]} }%
+\CSLRightInline{J. Sohl-Dickstein, E. A. Weiss, N. Maheswaranathan, and
+S. Ganguli, {``Deep {Unsupervised Learning} using {Nonequilibrium
+Thermodynamics}.''} Accessed: Oct. 05, 2023. {[}Online{]}. Available:
+\url{http://arxiv.org/abs/1503.03585}}
+
+\bibitem[\citeproctext]{ref-sohl-dicksteinDeepUnsupervisedLearning2015}
+\CSLLeftMargin{{[}4{]} }%
+\CSLRightInline{J. Sohl-Dickstein, E. A. Weiss, N. Maheswaranathan, and
+S. Ganguli, {``Deep {Unsupervised Learning} using {Nonequilibrium
+Thermodynamics}.''} Accessed: Jul. 16, 2024. {[}Online{]}. Available:
+\url{http://arxiv.org/abs/1503.03585}}
+
 \end{CSLReferences}
 
 \end{document}
diff --git a/4. Qualifying Exam/2. Writing/test.bib b/4. Qualifying Exam/2. Writing/test.bib
new file mode 100644
index 00000000..e69de29b