\begin{table}%t4
%\centering
\par
\caption{\label{comp}Comparison of different models.}
$$ \begin{tabular}{lllclccl}
\hline \hline
Reference & Date & Model &$\lambda$ range& Mix. & $p_v$ & H$_2$O amount & Other components \\
\hline  
Br. \& Ko. & 1998  & Hapke &\textit{H+K}& Geo. & 0.050 & 3\% (10~$\mu$m) & Murchison 97\% \\
%\hline
\multirow{3}*{Dotto et~al.}  & \multirow{3}*{2001} & \multirow{3}*{Hapke} &\multirow{3}*{Vis+\textit{J}+\textit{H+K}}& \multirow{3}*{Geo.} &\multirow{3}*{ 0.059} & \multirow{3}*{2\% (20~$\mu$m)} & Am. C 80\% (10~$\mu$m)\\
  &&&&&&        & Triton th. 13\% (10~$\mu$m)\\
  &&&&&&        & Titan th. 5\% (7~$\mu$m)\\
%\hline                            
\multirow{3}*{Dotto et~al.}  & \multirow{3}*{2002} & \multirow{3}*{Hapke} &\multirow{3}*{Vis+\textit{J}+\textit{H+K}}& \multirow{3}*{Geo. }&\multirow{3}*{ 0.055} & \multirow{3}*{2\% (20~$\mu$m)} & Am. C 84\% (10~$\mu$m)\\
&   &   & &  &   &   & Triton th. 7\% (10~$\mu$m)\\
&    & & & & & & Titan th. 7\% (7~$\mu$m)\\
%\hline                             
\multirow{4}*{This work}& \multirow{4}*{2007} &\multirow{4}*{ Shkur.} && \multirow{4}*{Geo.} &\multirow{4}*{ 0.057} & \multirow{4}*{ No water ice}      & Am. C 95\% (10~$\mu$m)\\
&   &          &Simultaneous  &          &           &  & Triton th. 2\% (40~$\mu$m)\\
&   &          &Vis+\textit{J}+\textit{H+K} &         &            &  & Titan th. 2\% (50~$\mu$m)\\
&   &           &                    &         &            &  & Olivine 1\% (10~$\mu$m)\\
%\hline
\multirow{4}*{This work}& \multirow{4}*{2008} & \multirow{4}*{Shkur. }&&\multirow{4}*{ Geo. }  & \multirow{4}*{0.057} &\multirow{4}*{ No water ice}      & Am. C 87\% (10~$\mu$m)\\
&           &             & Simultaneous &        &          &  & Triton th. 6\% (70~$\mu$m)\\
&           &              &Vis+\textit{J}+\textit{H+K}                  &          &        &  & Titan th. 6\% (15~$\mu$m)\\
&           &             &                     &         &       &    & Olivine 1\% (10~$\mu$m)\\
%\hline
\multirow{2}*{This work} &\multirow{2}*{ 2007} &\multirow{2}*{ Shkur.} &Simultaneous&\multirow{2}*{ Int.}    & \multirow{2}*{0.057} & Cr. 3\% (10~$\mu$m)       & Am. C 86\% (10~$\mu$m)\\
&            &          & Vis+\textit{J}+\textit{H+K} &         &           &  Am. 5\% (10~$\mu$m) & Triton th. 6\% (5~$\mu$m)\\
%\hline
\multirow{2}*{This work} &\multirow{2}*{ 2008} & \multirow{2}*{Shkur.} &Simultaneous&\multirow{2}*{ Int.}   & \multirow{2}*{0.057} & Cr. 5\% (18~$\mu$m)      & Am. C 74\% (10~$\mu$m)\\
& & & Vis+\textit{J}+\textit{H+K} & & &  Am. 4\% (10~$\mu$m) & Triton th. 17\% (16~$\mu$m)\\
\hline
\end{tabular}$$
\end{table}