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The HST Key Project on the Extragalactic Distance Scale XI. The Cepheids in NGC 4414
Ferrarese, L.; Saha, A.; Bresolin, F.; Kennicutt, R. C. Jr.; Stetson, P. B.; Graham, J. A.; Madore, Barry; Silbermann, N. A.; Harding, P.; Freedman, L.; Mould, J. R.; Fored, H.; Hann, M.; Hoessel, J. G.; Huchra, J. P.; Hughes, S. M. G.; Illingworth, G. D.; Phelps, R.; Sakai, S.
We report the discovery of Cepheid variable stars in the galaxy NGC 4414, as part of the Hubble Space Telescope (HST) key project on the Extragalactic Distance Scale.