\begin{table}%T3
%\centering
\par
\caption{X-ray pulsar in group three, for which no reliable pulse shapes were found.}
\begin{tabular}{lllp{5cm}p{6cm}}
\hline
\hline
System         &  $P_{\rm spin}$&  Type  &   Comments     &  References \\
\hline
J0501.1-7211   & 3.343      &  ?         & no lc published & \citet{1998IAUC.7028....1Y}\\
EXO 053109-6609.2& 13.7     &  ?         & EXOSAT detection & \citet{1995IAUC.6184....2D}\\
J0053.8-7226   & 46.6       &  ?        & no lc  published    & \citet{1998IAUC.6803....1C}\\
X 1839-04      &  81.1      &   ?     & no lc published   &   \citet{1990Natur.343..148K}\\
J0051-722      & 91.1       & ?  &   & \citet{2001AnA...368.1021L}\\
AX 1820.5-1434 &  152       &  ?     &  weak pulsations  &  \citet{1998ApJ...495..435K}\\
J0054-720       & 169.3     & ?        & no lc  published & \citet{1998IAUC.6814....1L}\\
3U 1239-599   &  191        &  ? &  Ariel obs, no lc published & \citet{1977MNRAS.180P..21H}\\
XTE J1858+034 &  221        &  ? & no lc published  &  \citet{1998IAUC.6826....2R}\\
4U 2206 + 54  & 392         &     ?  & no lc published & \citet{1992ApJ...401..678S}\\
1WGA J1958.2+3232& 730      &   ? & only ROSAT lc &\citet{1998MNRAS.298..502I}\\
AX J0049.5-7323&  755       &   ?    & weak pulsations & \citet{2000PASJ...52L..73Y}\\\hline
\end{tabular}
\label{nieznane}
\end{table}