Tolong jelaskan mengenai 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).