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Astron. Astrophys. 324, L1-L4 (1997) AcknowledgementsF.C. is supported by ARC 94/99-178 "Action de Recherche Concertée de la Communauté Française" and Pôle d'Attraction Interuniversitaire P4/05 (SSTC, Belgium). C.R.K. is supported by ONR-NDSEG grant N00014-93-I-0774. C.S.K. is supported by NSF grant AST-9401722. ![]() ![]() ![]() ![]() © European Southern Observatory (ESO) 1997 Online publication: May 26, 1998 ![]() |