# How to cite a page in subfloat figure

I want to cite a page within a subfigure. The parsing process breaks because tex assumes the page brackets for the page ref ] are closing the subfloat command. How can I prevent this or how can I correctly cite a page in a subfigure?

\begin{figure}[H]
\centering
\subfloat[Confusion matrix for multi-class classification. The confusion matrix of a classification with n classes. When considering the class $k$ $(0 \leq k \leq n)$, the four different classification results can be obtained: true positive (green), true negative (orange), false positive (brown), and false negative (red) \citep[p.73]{kruger2016activity}.]{\includegraphics[width=0.4\textwidth]{multiclass-conf-matrix-alt.png}
\label{fig:mult-mat}}
\hfill
\subfloat[Example for a multiclass confusion matrix \citep{baeld:f1}.]
{\includegraphics[width=0.55\textwidth]{binary_classes-multi-class-1.png}
\label{fig:mult-ex}}
\caption{Multiclass confusion matrices.}
\label{fig:multi-conf-mat}
\end{figure}



If you want to use a ] inside an optional argument, you can enclose it in curly braces, e.g.,
\subfloat[Example for a multiclass confusion matrix {\citep[47]{baeld:f1}}.]