diff --git a/presentations/2022-02-03_group_meeting/2022-02-03_group_meeting.tex b/presentations/2022-02-03_group_meeting/2022-02-03_group_meeting.tex
index 931e62a..7d9beaf 100644
--- a/presentations/2022-02-03_group_meeting/2022-02-03_group_meeting.tex
+++ b/presentations/2022-02-03_group_meeting/2022-02-03_group_meeting.tex
@@ -77,13 +77,19 @@
 		\begin{column}{.5\textwidth}
 			\begin{figure}
 				\includegraphics[width=\textwidth]{beacon/auger/1512.02216.figure2.beacon_beat.png}
-				\caption{Four beacon frequencies create a well-defined beating. From \cite{PierreAuger:2015aqe}}
+				\caption{
+					\cite{PierreAuger:2015aqe}
+					Four beacon frequencies beating at PA.
+				}
 			\end{figure}
 		\end{column}
 		\begin{column}{.5\textwidth}
 			\begin{figure}
 				\includegraphics[width=\textwidth]{beacon/auger/1512.02216.figure4.ads-b.png}
-				\caption{ADS-B and signal intercepts. From \cite{PierreAuger:2015aqe}}
+				%\caption{
+				%	\cite{PierreAuger:2015aqe}
+				%	ADS-B and signal intercepts.
+				%}
 			\end{figure}
 		\end{column}
 	\end{columns}
@@ -98,7 +104,10 @@
 	\end{itemize}
 	\begin{figure}
 		\includegraphics[width=0.4\textwidth]{white-rabbit/protocol/ptpMSGs-color.pdf}
-		\caption{Precision Time Protocol messages. From \cite{WRPTP}}.
+		\caption{
+			\cite{WRPTP}
+			Precision Time Protocol messages.
+		}
 	\end{figure}
 \end{frame}
 
@@ -121,19 +130,27 @@
 				\item link ($\delta_{ms}$, ...)
 			\end{itemize}
 			\begin{figure}
-				\makebox[\textwidth][c]{\includegraphics[width=1.2\textwidth]{white-rabbit/protocol/delaymodel.pdf}}
-				%\caption{From \cite{WRPTP}}.
+				\makebox[\textwidth][c]{\includegraphics[width=1.1\textwidth]{white-rabbit/protocol/delaymodel.pdf}}
+				%\caption{\small From \cite{WRPTP}}.
 			\end{figure}
 		\end{column}
 		\begin{column}{.5\textwidth}
 			\begin{figure}
 				\makebox[\textwidth][c]{\includegraphics[width=1.1\textwidth]{white-rabbit/protocol/wrptpMSGs_1.pdf}}
-				\caption{From \cite{WRPTP}}.
+				%\caption{From \cite{WRPTP}}.
 			\end{figure}
 		\end{column}
 	\end{columns}
 \end{frame}
 
+\begin{frame}{White Rabbit}
+	\begin{figure}
+		\centering
+		\includegraphics<1>[width=0.8\textwidth]{gnss/phase-delocked-gps-white-rabbit-setup-colored.pdf}
+		\includegraphics<2>[width=0.8\textwidth]{gnss/phase-locked-gps-white-rabbit-setup-colored.pdf}
+	\end{figure}
+\end{frame}
+
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \section{Fourier and Phase information}
 \begin{frame}{(Discrete) Fourier and Phase}
@@ -195,4 +212,10 @@
 		\makebox[\textwidth][c]{\includegraphics[width=1.3\textwidth]{fourier/02-fourier_phase-relative_amplitudes_vs_N_samples_power.pdf}}\\%
 	\end{figure}
 \end{frame}
+
+%%%%%%%%%%%%%
+\section*{References}
+\begin{frame}{References}
+		\printbibliography
+\end{frame}
 \end{document}