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\usepackage[british]{babel}
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\begin{document}
	In table~\ref{tab:dorastat} the amount of publications in the DORA repository.
	\begin{table}

		\begin{tabular}{l|c|c|c|c}
		
			& \multicolumn{4}{c}{{\bfseries Research Institutes}} \\
			
			\cline{2-5}                          
			
			& \includegraphics[height=1.75em]{logo/eawag} 
				&  \includegraphics[height=2.5em]{logo/empa} 
					& \includegraphics[height=2.25em]{logo/psi} 
						& \includegraphics[height=2.5em]{logo/wsl}   \\
			
			\hline
			Journal Article            & 11278  & 14407  & 31141  & 11543   \\
			Newspaper/Magazine Article &  1245  &  1238  &    34  &  3387   \\
			(Edited) Book              &   282  &   404  &    44  &   920   \\
			Book Chapter               &   739  &   742  &   458  &  2820   \\
			Proceedings Paper          &  1095  &  4613  &  4113  &  2370   \\
		    
		\end{tabular}

		\caption{Some DORA statistics}
		\label{tab:dorastat}

	\end{table}
\end{document}