Karan Armstrong (English Wikipedia)

Kutsch, K.J.; Riemens, L.; Rost, H. (2012). Karan Armstrong. Großes Sängerlexikon (in German). De Gruyter. pp. 151–152. ISBN 978-3-598-44088-5. Retrieved September 29, 2021.

bz-berlin.de

Hafner, Martina (September 29, 2021). "Opern-Diva Karan Armstrong gestorben". B.Z. Berlin (in German). Retrieved September 29, 2021.

"Karan Armstrong-Friedrich". Götz-Friedrich-Stiftung. Retrieved September 30, 2021.

"Armstrong Proves a Soubrette Also Rises". Los Angeles Times. October 14, 1988. Retrieved September 30, 2021.

"Karan Armstrong (USA/Deutschland)". Lotte Lehmann Akademie, Perleberg (in German). Retrieved August 7, 2021.

"Die Frau ohne Schatten Metropolitan Opera House: 10/2/1966. (Metropolitan Opera Premiere)". Metropolitan Opera Association. October 2, 1966. Archived from the original on September 29, 2021. Retrieved September 29, 2021.
Profile, metoperafamily.org; accessed July 29, 2015.
"Karan Armstrong Performances". Metropolitan Opera Association. Archived from the original on March 6, 2022. Retrieved September 29, 2021.

"Sopranistin Karan Armstrong gestorben". Berliner Morgenpost (in German). September 29, 2021. Retrieved September 29, 2021.

"New 'Coq d'Or' Queen Is Karan Armstrong". The New York Times. April 7, 1969. Retrieved September 29, 2021.
"City Opera Presents "Fanciulla"". The New York Times. November 3, 1977. Retrieved September 30, 2021.

Salazar, Francisco (October 5, 2021). "Obituary: Soprano Karan Armstrong Dies at 79". OperaWire. Retrieved January 24, 2025.

"Pelléas et Mélisande – Musica". Rai Cultura (in Italian). March 11, 2019. Retrieved September 30, 2021.

Hanssen, Frederic (September 29, 2021). "Die Sopranistin Karan Armstrong ist tot". Der Tagesspiegel (in German). Retrieved September 29, 2021.

""Aufstieg und Fall der Stadt Mahagonny" von Bertolt Brecht im THEATER ERFURT". Theaterkompass – Für Theaterbesucher und Theatermacher (in German). February 14, 2009. Retrieved September 30, 2021.
"QUARTETTO von Ronald Harwood". Theaterkompass – Für Theaterbesucher und Theatermacher (in German). June 15, 2016. Retrieved September 30, 2021.

"Biography of Karan Armstrong (1941-VVVV)". TheBiography.us. December 14, 1941. Archived from the original on September 30, 2021. Retrieved September 30, 2021.

"Die Frau ohne Schatten Metropolitan Opera House: 10/2/1966. (Metropolitan Opera Premiere)". Metropolitan Opera Association. October 2, 1966. Archived from the original on September 29, 2021. Retrieved September 29, 2021.
"Karan Armstrong Performances". Metropolitan Opera Association. Archived from the original on March 6, 2022. Retrieved September 29, 2021.
"Biography of Karan Armstrong (1941-VVVV)". TheBiography.us. December 14, 1941. Archived from the original on September 30, 2021. Retrieved September 30, 2021.

Baumgartner, Edwin (September 29, 2021). "Todesfall". Bühne – Wiener Zeitung Online (in German). Retrieved September 29, 2021.