+ \begin{minipage}{6.5cm}
+ \begin{center}
+ \footnotesize
+ Gesamtpotential konventionellen Erd"ols in Gt\\
+ \includegraphics[width=6.5cm]{oel_kap.eps}
+ \end{center}
+ \end{minipage}
+ \begin{minipage}{6.5cm}
+ \begin{center}
+ \footnotesize
+ Gesamtpotential konventionellen Erdgases in m$^3$\\
+ \includegraphics[width=6.5cm]{gas_kap.eps}
+ \end{center}
+ \end{minipage}\\[0.2cm]
+ \begin{minipage}[t]{6.5cm}
+ \begin{center}
+ \footnotesize
+ F"orderverl"aufe von Erd"ol in Gt/Jahr\\
+ \includegraphics[width=6.5cm]{peak_oil.eps}
+ \end{center}
+ \end{minipage}
+ \begin{minipage}[t]{6.5cm}
+ \begin{center}
+ \footnotesize
+ F"orderverl"aufe von Erdgas in m$^3$/Jahr\\
+ \includegraphics[width=6.5cm]{peak_gas.eps}
+ \end{center}
+ \end{minipage}