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Online Data Catalog. European Southern Observatory with data provided by the Smithsonian Astrophysical Observatory/NASA Astrophysics Data System. 2246.
Fundamental Properties of an Eclipsing Binary in the Andromeda Galaxy". Astrophysical Journal. 635: L37–L40. डीओआइ:10.1086/499161. मूल से 1 सितंबर 2018 को