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Astron. Astrophys. 350, 1051-1059 (1999) AcknowledgementsThe numerical computations presented in this paper have been performed on the CRAY supercomputers of the Commissariat à l'Energie Atomique and the Institut I.D.R.I.S of the Centre National de la Recherche Scientifique. This work benefits from a NATO Collaborative Research Grant support. ![]() ![]() ![]() ![]() © European Southern Observatory (ESO) 1999 Online publication: October 14, 1999 ![]() |