Karl Klingler (English Wikipedia)

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.

klingler-stiftung.de

Christoph Poppen. "Karl Klingler – Biografie". Karl Klingler Stiftung, Dießen. Archived from the original on 8 November 2014. Retrieved 17 October 2016.
Christoph Poppen. "Klingler Quartett". Karl Klingler Stiftung, Dießen. Archived from the original on 19 May 2016. Retrieved 17 October 2016.
Christoph Poppen. "Aktivitäten". Karl Klingler Stiftung, Dießen. Archived from the original on 19 May 2016. Retrieved 17 October 2016.
Christoph Poppen. "Marianne-Migault Klingler: Biografie". Karl Klingler Stiftung, Dießen. Archived from the original on 19 October 2016. Retrieved 17 October 2016.
Christoph Poppen. "Vergangene Wettbewerbe". Karl Klingler Stiftung, Dießen. Archived from the original on 20 October 2016. Retrieved 17 October 2016.

Christoph Poppen. "Karl Klingler – Biografie". Karl Klingler Stiftung, Dießen. Archived from the original on 8 November 2014. Retrieved 17 October 2016.
Christoph Poppen. "Klingler Quartett". Karl Klingler Stiftung, Dießen. Archived from the original on 19 May 2016. Retrieved 17 October 2016.
Christoph Poppen. "Aktivitäten". Karl Klingler Stiftung, Dießen. Archived from the original on 19 May 2016. Retrieved 17 October 2016.
Christoph Poppen. "Marianne-Migault Klingler: Biografie". Karl Klingler Stiftung, Dießen. Archived from the original on 19 October 2016. Retrieved 17 October 2016.
Christoph Poppen. "Vergangene Wettbewerbe". Karl Klingler Stiftung, Dießen. Archived from the original on 20 October 2016. Retrieved 17 October 2016.