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Beobachtungen der Helligkeit des Planeten (433) Eros
1901
Astronomical Notes - Astronomische Nachrichten
2 0 3 3 709 2 0 4 5. La stella fu stimata il 1 7 e 18 Luglio di 9415
doi:10.1002/asna.19011551303
fatcat:cme3how7gfbundj3x347fshfqu