Tables 2 and 4 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/cgi-bin/qcat?J/A+A/365/1

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Figure 2 and Tables 3, 5 and 6 are only available in electronic form at http://www.edpsciences.org

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... $\mu_{B}(0)+5{\rm log}(h_{\rm r})>27.6$

Sprayberry et al. (1995b) formulated their diffuseness index based on a distance scale with H₀=100 kms^-1 Mpc^-1. Here we have rewritten the diffuseness criterion for $H_{0}=\,75$ kms^-1 Mpc^-1, which is assumed throughout this work.

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