Kerstin Wartberg (2009). "Suzuki's family background – Life between tradition and progress"(PDF). Shinichi Suzuki: Pioneer of Music Education. Translated by Ursula Mueller-Gaehler. Deutsches Suzuki Institut. pp. 8–29. Retrieved 18 October 2016. Cite error: The named reference "SSvolgensKW" was defined multiple times with different content (see the help page).
