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Astron. Astrophys. 342, L9-L12 (1999) AcknowledgementsWe like to thank the Calar Alto staff for his kind assistance during the observations. We were supported by the DFG (hopp/1801-1) and by the SFB 375, and by GO-07859.01-96A (to rsl). ![]() ![]() ![]() ![]() © European Southern Observatory (ESO) 1999 Online publication: December 22, 1998 ![]() |