\begin{table}%t4
\caption{Bibliographical radio data for the MERLIN-detected sources; 
Col. 1: survey;
Col. 2: observing frequency;
Col. 3: resolution;   
Col. 4: instrument;  
Col. 5: reference.}\label{t4}
%\centerline
{
\begin{tabular}{l c c c c}
\hline
\hline
             & $\nu$     & Res.     &        &     \\
Survey       & (GHz)     & (mas) & Instr. & Ref. \\
(1)          & (2)       & (3)       & (4)   & (5) \\
\hline
NVSS & 1.4 & 45000 & VLA & 1 \\
\hline
FIRST & 1.4 & 5000 & VLA & 2 \\
\hline
VLA/N00 & 15 & 150 & VLA & 3 \\
VLA/N02 & 15 & 150 & VLA    & 4 \\
VLA/N05 & 15 & 150 & VLA     & 5 \\
\hline
VLBA/N02 & 5 & 2 & VLBA & 4 \\
VLBA/N05 & 5  &  2     &  VLBA    & 5 \\
F00      & 5  &  2     &  VLBA    & 6 \\
\hline
HU01 & 5.0 & 1000 & VLA & 7 \\
\hline
AUH04 & 1.7 & 10 & VLBA & 8 \\
      & 2.3 & 6 &      &                               \\       
      & 5.0 & 2 &      &                               \\
      & 8.4 & 1.6 &     &                                \\
      & 15.4 & 1.2 &    &                                \\
      & 22.2 & 0.8 &    &                                 \\
      & 43.2 & 0.4 &    &                                \\
\hline
\end{tabular}}
\medskip
R{\sc eferences} -- (1) Condon \etal (\cite{Condon98}); (2) Becker et~al. (\cite{Becker95});
(3)~Nagar \etal (\cite{Nagar00}); (4) Nagar \etal (\cite{Nagar02}); (5) Nagar et~al. (\cite{Nagar05}) and
references therein;
(6) Falcke \etal (\cite{Falcke00}); (7) Ho \& Ulvestad (\cite{Ho01}); (8) Anderson et~al. (\cite{Anderson04}).
\end{table}