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Research Associate of the Belgian National Fund for Scientific Research (NFWO).
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...[*]
On leave from Abastumani Astrophysical Observatory, Kazbegi ave. 2a, Tbilisi-380060; and Department of Physics, Tbilisi State University, Chavchavadze ave. 2, Tbilisi-380028, Republic of Georgia.
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Copyright ESO 2001