@article{Verschueren:1869,
      author        = "Verschueren, W. and  Brown, A. G. A. and  Hensberge, H.
                       and  David, M. and  Le Poole, R. S. and  de Geus, E. J. and
                        de Zeeuw, P. T.",
      title         = "{High S/N Echelle Spectroscopy in Young Stellar Groups. I.
                       Observations and Data Reduction}",
      year          = "1997",
}