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[astro-ph/0301100] Current Uncertainties in the Use of Cepheids as Distance Indicators http://t.co/ocyIRwftnV
[astro-ph/0301100] Current Uncertainties in the Use of Cepheids as Distance Indicators http://t.co/ocyIRwftnV
[astro-ph/0301179] Blue Supergiants as a Tool for Extragalactic Distances - Empirical Diagnostics http://t.co/P4nWcgplSC