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\begin{figure}[htbp]
\ifthenelse{\equal{IJMPB}{\TschStyle}}{%
\centerline{\psfig{file=PictureLarge_nb014and015and016and017_.eps,width=5.00in}}
}{}%
\ifthenelse{\equal{arXiv}{\TschStyle}}{%
\centerline{\includegraphics[scale=0.60]{PictureSmall_nb014and015and016and017_.png}}
}{}%
\ifthenelse{\equal{TeX4ht}{\TschStyle}}{%
\centerline{\includegraphics[scale=0.60]{PictureLarge_nb014and015and016and017_.png}}
}{}
\vspace*{8pt}
\caption{The radiation intensity of the ground
         \textit{and} 
         its partial derivative as a function
         of the wave length $\lambda$ (left column)
         and of the frequency $\nu$ (right column).}
\label{Fig:nb016nb017nb018nb019}
\end{figure}
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