...sequence?

Based on observations collected at the European Southern Observatory, La Silla (Chile).

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...galaxies

Tables 3, 4, 5, 6, 7 and 8 are only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/Abstract.html

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