Farbäquivalente von 51 polnahen Sternen.Published in:Astronomische Nachrichten, 1932, v. 247, n. 5, p. 73, doi. 10.1002/asna.19322470502By:Führeer, WilhlmPublication type:Article
Masthead.Published in:Astronomische Nachrichten, 1932, v. 247, n. 5, p. fmi, doi. 10.1002/asna.19322470501Publication type:Article