Photographische Aufnahmen von kleinen Planeten und Jupitersmonden.Published in:Astronomische Nachrichten, 1909, v. 180, n. 5/6, p. 101, doi. 10.1002/asna.19091800503By:Wolf, M.Publication type:Article
Double star measures made with the 40-inch refractor of the Yerkes Observatory.Published in:Astronomische Nachrichten, 1909, v. 180, n. 5/6, p. 65, doi. 10.1002/asna.19091800502By:Burnham, S. W.Publication type:Article
Masthead.Published in:Astronomische Nachrichten, 1909, v. 180, n. 5/6, p. fmi, doi. 10.1002/asna.19091800501Publication type:Article