Jelaskan Filmografi pilihan dari Weiß Ferdl

Left of the Isar, Right of the Spree (1929)

The Song of the Nations (1931)

All Because of the Dog (1935)

Robert Eben Sackett: Popular entertainment, class, and politics in Munich, 1900-1923. Study of Munich popular theatre, focusing on Karl Valentin and Weiß Ferdl. Harvard University Press, Cambridge, Massachusetts, USA, 1982,  (englisch).