Bergan, Ronald (July 22, 2015). "Theodore Bikel obituary". The Guardian. Archived from the original on December 23, 2016. Retrieved December 16, 2016 – via www.theguardian.com.
Bergan, Ronald (July 22, 2015). "Theodore Bikel obituary". The Guardian. Archived from the original on December 23, 2016. Retrieved December 16, 2016 – via www.theguardian.com.