diff --git a/ChangeLog b/ChangeLog
index 72bae06a..2ce50126 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -3,6 +3,11 @@
 -Name
 -changes
 
+--------------
+August 15, 2024
+Name: Shashikant Kumar
+Changes: doc/
+1. Add cyclix mlff phonon paper in the Manual_mlff
 
 --------------
 August 11, 2024
diff --git a/doc/.LaTeX/mlff/Introduction.tex b/doc/.LaTeX/mlff/Introduction.tex
index 6e360d48..1202a027 100644
--- a/doc/.LaTeX/mlff/Introduction.tex
+++ b/doc/.LaTeX/mlff/Introduction.tex
@@ -23,7 +23,7 @@
 \begin{frame}[allowframebreaks]{\textbf{Citation}} \label{Citation}
 If you publish work using/regarding MLFF in SPARC, please cite some of the following articles, particularly those that are most relevant to your work:
 \begin{itemize}
-    \item \url{https://doi.org/10.1063/5.0180541}
+    \item \url{https://doi.org/10.1063/5.0180541}, \url{https://doi.org/10.48550/arXiv.2408.07554} (Cyclix-DFT)
 
 \end{itemize}
 \end{frame}
diff --git a/doc/Manual_mlff.pdf b/doc/Manual_mlff.pdf
index 2e0a465b..1de8cf7a 100644
Binary files a/doc/Manual_mlff.pdf and b/doc/Manual_mlff.pdf differ