Tolong jelaskan mengenai Bacaan tambahan dari Wilhelm Furtwängler

Ardoin John, The Furtwängler Record. Portland: Amadeus press,1994. .

Furtwängler, Wilhelm. Notebooks 1924–1954. Edited by Michael Tanner. Translated by Shaun Whiteside. London: Quartet Books, 1989. .

Pirie Peter, Furtwängler and the Art of Conducting. London, Duckworth, 1980,