\begin{table}%t1
\caption{SN sample and observations.}
\label{table1}
\small%\centerline
 {
\begin{tabular}{l c c c c c c}
\hline \hline
%&&&&&& \\[-8pt]
SN & Discovery & Acquisition & Instrumentation      & Spectral range & Resolution$^{1}$ & Reference\\
   & DD/MM/YY  & DD/MM/YY    & telescope + instrument & \AA            & \AA              & IAUC / CBET\\
\hline
2002an & 22/01/02 & 05/02/02 & 1.82 m Mt.Ekar + AFOSC & 3700--7620 & 25   & 7805, 7808, 7818, 7828\\
2002bh & 24/02/02 & 05/03/02 & 1.82 m Mt.Ekar + AFOSC & 4000--7600 & 26   & 7837, 7840, 7844\\
2002cs & 05/05/02 & 07/05/02 & TNG + DOLORES         & 3500--7930 & 15   & 7891, 7894\\
2002dg & 31/05/02 & 15/06/02 & ESO NTT + EMMI        & 3800--9330 & 10   & 7915, 7922\\
2002dm & 04/05/02 & 15/06/02 & ESO VLT U4 + FORS2    & 4290--10~250$^{2}$ & 12  & 7921, 7923\\
2002ej & 09/08/02 & 30/08/02 & 1.82 m Mt.Ekar + AFOSC & 3800--7630 & 25   & 7951, 7963\\
2002hg & 28/10/02 & 02/11/02 & CA 2.2 m + CAFOS       & 3600--8690 & 12   & 8004, 8007\\
2002hm & 05/11/02 & 06/11/02 & CA 2.2 m + CAFOS       & 3500--8700 & 13   & 8009\\
2002hy & 12/11/02 & 15/11/02 & ESO 3.6 m + EFOSC2     & 3500--9820 & 13   & 8016, 8019\\
2003hg & 18/08/03 & 22/08/03 & 1.82 m Mt.Ekar + AFOSC & 3800--7360 & 24   & 8184, 8187, 40\\
2003hn & 25/08/03 & 26/08/03 & ESO 3.6 m + EFOSC2     & 3600--9960 & 13   & 8186, 8187\\
2003ie & 19/09/03 & 22/09/03 & 1.82 m Mt.Ekar + AFOSC & 4000--7440 & 25   & 8205, 8207\\
2004G  & 19/01/04 & 21/01/04 & CA 2.2 m + CAFOS       & 3500--8090 & 14   & 8272, 8273\\
2004aq & 02/03/04 & 10/03/04 & NOT + ALFOSC          & 3900--8910 & 19   & 8301\\
2004bs & 16/05/04 & 19/05/04 & CA 2.2 m + CAFOS       & 3800--8650 & 12   & 8341, 66, 8344, 8348\\
2004cc & 10/06/04 & 14/06/04 & NOT + ALFOSC          & 3500--8990 & 19   & 8350, 8353\\
2004dg & 19/07/04 & 21/07/04 & 1.82 m Mt.Ekar + AFOSC & 3800--7780 & 25   & 8375, 8376, 8383\\
2004dk & 30/07/04 & 03/08/04 & CA 2.2 m + CAFOS       & 3500--8750 & 12   & 8377, 8379, 8404, 75\\
2004dn & 29/07/04 & 05/08/04 & CA 2.2 m + CAFOS       & 3800--8690 & 12   & 8381\\
2004fe & 30/10/04 & 02/11/04 & NOT + ALFOSC          & 3500--8900 & 19   & 8425, 8426\\
2004go & 18/11/04 & 07/12/04 & 1.82 m Mt.Ekar + AFOSC & 3800--7580 & 24   & 8448, 8450, 8454 \\
2005G  & 14/01/05 & 18/01/05 & 1.82 m Mt.Ekar + AFOSC & 3600--7300 & 24   & 8465, 8568\\
2005H  & 15/01/05 & 17/01/05 & CA 2.2 m + CAFOS       & 4000--8700 & 10   & 8467\\
2005I  & 15/01/05 & 18/01/05 & CA 2.2 m + CAFOS       & 3800--8610 & 12   & 8467\\
2005N  & 19/01/05 & 22/01/05 & CA 2.2 m + CAFOS       & 3700--8600 & 12   & 8470\\
2005V  & 30/01/05 & 31/01/05 & CA 2.2 m + CAFOS       & 3500--8780 & 14   & 8474, 8572\\
2005ab & 05/02/05 & 09/02/05 & 1.82 m Mt.Ekar + AFOSC & 4250--8070 & 25   & 8478, 8479, 8480\\
2005ai & 12/02/05 & 14/02/05 & CA 2.2 m + CAFOS       & 3800--8700 & 12   & 8486, 8487\\
2005br & 28/03/05 & 25/05/05 & ESO VLT U1 + FORS2    & 4000--9710$^{2}$ & 12   & 8516, 156, 8538\\
2005bs & 19/04/05 & 25/05/05 & ESO VLT U1 + FORS2    & 3800--9290$^{2}$ & 12   & 8517, 143, 156, 8538\\
2005cb & 13/05/05 & 25/05/05 & ESO VLT U1 + FORS2    & 3700--9720$^{2}$ & 12   & 8530, 156, 8538\\
2005ce & 28/05/05 & 29/05/05 & NOT + ALFOSC          & 3400--8800 & 19   & 158, 159\\
2005de & 02/08/05 & 06/08/05 & CA 2.2 m + CAFOS       & 3500--8640 & 15   & 8580, 191, 8581, 193\\
2005dv & 04/09/05 & 09/09/05 & CA 2.2 m + CAFOS       & 3500--8710 & 12   & 8598, 217, 218\\
2005dz & 10/09/05 & 12/09/05 & NOT + ALFOSC          & 3400--8850 & 19   & 222, 225\\
2005kl & 22/11/05 & 24/11/05 & CA 2.2 m + CAFOS       & 4200--8750 & 12   & 8634, 300, 305\\
\hline
\end{tabular}}
\medskip
Notes: $^{1}$ measured on the FWHM of the night sky lines when available,
otherwise the typical FWHM for the respective telescope-instrument combination is written, $^{2}$~obtained by merging two spectra with different spectral coverage.\\
1.82~m Mt.Ekar~+ AFOSC~-- 1.82~m Copernico Telescope~+ Asiago Faint Object Spectrograph and Camera, Asiago, Italy.\\
TNG + DOLORES -- 3.5 m Telescopio Nazionale Galileo + Device Optimized for the LOw RESolution, La Palma, Spain.\\
ESO NTT + EMMI -- 3.5 m New Technology Telescope~+ ESO Multi-Mode Instrument, ESO La Silla, Chile.\\
ESO VLT U1, U4 + FORS2 -- 8 m Very Large Telescope, Unit~1, 4~+ visual and near UV FOcal Reducer and low dispersion Spectrograph~2, ESO Paranal, Chile. \\
CA 2.2 m + CAFOS -- 2.2 m Calar Alto Telescope~+ Calar Alto Faint Object Spectrograph, Almer\'ia, Spain. \\
ESO 3.6 m + EFOSC2 -- 3.6 m Telescope + ESO Faint Object Spectrograph and Camera (v.2), ESO La Silla, Chile. \\
NOT + ALFOSC -- Nordic Optical Telescope + AndaLucia Faint Object Spectrograph and Camera, La Palma, Spain.
\end{table}