Untersuchungen über die aus Beobachtungen an den Pariser Meridianinstrumenten abgeleiteten Sternpositionen.Published in:Astronomische Nachrichten, 1888, v. 119, n. 13, p. 193, doi. 10.1002/asna.18881191302By:Oertel, K.Publication type:Article
Masthead.Published in:Astronomische Nachrichten, 1888, v. 119, n. 13, p. fmi, doi. 10.1002/asna.18881191301Publication type:Article
Dearborn Observatory.Published in:Astronomische Nachrichten, 1888, v. 119, n. 13, p. 208, doi. 10.1002/asna.18881191303By:Hough, G.W.Publication type:Article