We would like to thank Drs. Montserrat Villar-Martín, Rene Mendez, Christopher Lidman, Martin Groenewegen, and Pierre-Alain Duc for discussion on various aspects of our research. We thank the referee Dr. Jeremy Mould for his comments which helped improving the paper. We acknowledge the allocation of Director's Discretionary Time at the Dutch telescope at ESO/La Silla. We made use of the SIMBAD database, operated at CDS, Strasbourg, France. Jacco queria expresar sus mejores gracias a Montse por haberle contestado sí a una pregunta bien profunda.
© European Southern Observatory (ESO) 1997
Online publication: April 28, 1998