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Astron. Astrophys. 363, 605-616 (2000) AcknowledgementsP.Ventura thanks M.Groenewegen for helpful discussions. We also thank B.Plez for useful informations on Li-rich AGBs and the referee A.Zijlstra for a very useful report.
© European Southern Observatory (ESO) 2000 Online publication: December 11, 2000 ![]() |