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Astron. Astrophys. 332, 523-525 (1998) AcknowledgementsWe would like to thank Caterina Zanin for providing us with the optical spectra and to Georg Lercher for several fruitful comments and suggestions. Further, we are grateful to the staff of the Observatory at Cimar Ekar, Asiago, and for the allocation of observing time there.
© European Southern Observatory (ESO) 1998 Online publication: March 23, 1998 ![]() |