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Astron. Astrophys. 363, 289-294 (2000) AcknowledgementsA. G. and A. H. thank the Austrian Academy of Sciences and the National Academy of Sciences of Ukraine for financing the exchange of scientists. A. H. thanks the `Austrian Fonds zur Förderung der wissenschaftlichen Forschung' for supporting these investigations. A. K and J. R. acknowledge the grant VEGA 2/7229/20 and the Austrian and Slovak Academy of Sciences.
© European Southern Observatory (ESO) 2000 Online publication: December 5, 2000 ![]() |