Planeten- und Kometenbeobachtungen an der k. k. Sternwarte in Wien.Published in:Astronomische Nachrichten, 1915, v. 201, n. 7, p. 129, doi. 10.1002/asna.19152010702Publication type:Article
Masthead.Published in:Astronomische Nachrichten, 1915, v. 201, n. 7, p. fmi, doi. 10.1002/asna.19152010701Publication type:Article
Berichtigungen.Published in:Astronomische Nachrichten, 1915, v. 201, n. 7, p. 151, doi. 10.1002/asna.19152010703By:Palisa, J.Publication type:Article